Emily Chen, MS
✓ Editorial Reviewer & Researcher

Emily Chen, MS

Maternal Health Researcher & Lead Medical Writer
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Academic Background: Master of Science in Health Sciences & Biomedical Communications
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Evidence Standard: Evidence-Based Medical Research Contributor | Pregnancy Clarity Editorial Collective

Emily Chen, MS, is a maternal health researcher and senior medical writer at Pregnancy Clarity. She specializes in analyzing clinical studies, translating reproductive endocrinology into accessible guidance, and fact-checking maternal-fetal health content against clinical guidelines from the American College of Obstetricians and Gynecologists (ACOG), the Centers for Disease Control and Prevention (CDC), and the National Institutes of Health (NIH).

Assigned Pregnancy Guides 41 Clinical Guides

Round Ligament Pain in Pregnancy: Causes, Symptoms, and When to Seek Care

Round Ligament Pain in Pregnancy: Causes, Symptoms, and When to Seek Care

Sharp, brief pain low in the belly or groin during pregnancy is often round ligament pain. Learn what it feels like, when it usually starts, and which warning signs need urgent care.

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Early Pregnancy Discharge: What Is Normal?

Early Pregnancy Discharge: What Is Normal?

Learn which early-pregnancy discharge changes may be normal, how infections can look, and when color, odor, pain, or bleeding needs medical care.

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Safe Medications During Pregnancy: The Complete Clinical Guide

Safe Medications During Pregnancy: The Complete Clinical Guide

Evidence-informed medical guide on safe over-the-counter and prescription medications during pregnancy—covering pain relief, allergies, colds, coughs, and gastrointestinal symptoms.

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Chemical Pregnancy: Signs, Causes, and What Happens Next

Chemical Pregnancy: Signs, Causes, and What Happens Next

Learn what a chemical pregnancy is, why tests can change from positive to negative, what bleeding may look like, and when to seek urgent care.

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Can Twins Cause a False-Negative Pregnancy Test?

Can Twins Cause a False-Negative Pregnancy Test?

Twins rarely explain a negative pregnancy test. Learn how early testing, urine concentration, and the uncommon hook effect can affect results.

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How Soon Can You Take a Pregnancy Test?

How Soon Can You Take a Pregnancy Test?

Learn when pregnancy tests are most reliable, how soon to test after sex, why early negatives happen, and when to repeat the test.

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How Soon After Implantation Can You Test?

How Soon After Implantation Can You Test?

Learn why implantation cannot be dated from symptoms, when home pregnancy tests are most reliable, and when a blood test may be used.

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When Do You Start Showing in Pregnancy?

When Do You Start Showing in Pregnancy?

Many pregnancy bumps become noticeable in the second trimester. Learn why timing varies with bloating, body shape, previous pregnancies, and twins.

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Is Diarrhea a Sign of Pregnancy? What It May Mean

Is Diarrhea a Sign of Pregnancy? What It May Mean

Diarrhea is not a reliable pregnancy sign. Learn common causes, how to prevent dehydration, which medicines need advice, and when to seek medical care.

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How to Read a Clearblue Pregnancy Test

How to Read a Clearblue Pregnancy Test

Learn how to read Clearblue digital, plus-and-minus, and line tests, what the control window means, and what to do with an unclear result.

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Safe Cheeses During Pregnancy: A Practical Guide

Safe Cheeses During Pregnancy: A Practical Guide

Learn which cheeses are safer during pregnancy, how pasteurization and Listeria affect risk, and when soft cheese should be cooked.

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Best Sleeping Positions in the Third Trimester

Best Sleeping Positions in the Third Trimester

Learn why side sleeping is recommended after 28 weeks, whether the left or right side is better, and what to do if you wake on your back.

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Pregnancy Test Guide: Timing, Results, and Accuracy

Pregnancy Test Guide: Timing, Results, and Accuracy

Learn when to test, how urine and blood pregnancy tests detect hCG, why false results happen, and what to do after a positive or negative result.

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Blood Pregnancy Test: Results, Timing, and hCG

Blood Pregnancy Test: Results, Timing, and hCG

Compare qualitative and quantitative blood pregnancy tests, when beta-hCG is useful, what results mean, and why trends need ultrasound.

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hCG Levels in Pregnancy: Ranges, Rise, and Results

hCG Levels in Pregnancy: Ranges, Rise, and Results

hCG ranges overlap widely. Learn how levels rise, why doubling is not a strict rule, what high or low results may mean, and how ultrasound helps.

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Pregnancy Symptoms: Earliest Signs, Onset Timeline & Trimester Guide

Pregnancy Symptoms: Earliest Signs, Onset Timeline & Trimester Guide

Clinical guide to pregnancy symptoms—covering earliest signs vs PMS, week-by-week onset timeline from conception to week 12, trimester changes, and urgent red flags.

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Cramps in Early Pregnancy: Normal Pain vs Warning Signs

Cramps in Early Pregnancy: Normal Pain vs Warning Signs

Mild early-pregnancy cramps can be common. Learn how uterine change, gas, cysts, miscarriage, ectopic pregnancy, and urinary problems differ.

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Bleeding & Spotting During Pregnancy: Color Guide & Clinical Triage

Bleeding & Spotting During Pregnancy: Color Guide & Clinical Triage

Comprehensive obstetric guide to bleeding and spotting during pregnancy—explaining color interpretation (pink vs brown vs red), trimesters, and emergency signs.

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Ectopic Pregnancy Symptoms: Pain, Bleeding, and Care

Ectopic Pregnancy Symptoms: Pain, Bleeding, and Care

Learn early ectopic pregnancy symptoms, rupture warning signs, risk factors, hCG and ultrasound diagnosis, treatment options, and follow-up.

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Morning Sickness in Pregnancy: Relief and Red Flags

Morning Sickness in Pregnancy: Relief and Red Flags

Learn when pregnancy nausea starts, food and fluid strategies, medicine options, dehydration signs, and how morning sickness differs from hyperemesis.

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Hyperemesis Gravidarum: Symptoms and Treatment

Hyperemesis Gravidarum: Symptoms and Treatment

Hyperemesis is severe pregnancy sickness. Learn dehydration and malnutrition signs, medical assessment, antiemetics, fluid treatment, and support.

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Cryptic Pregnancy: Facts About Late Recognition

Cryptic Pregnancy: Facts About Late Recognition

Cryptic pregnancy is an informal term for late recognition. Learn why tests can be mistimed, why bleeding is not a period, and how pregnancy is confirmed.

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Molar Pregnancy: Symptoms, Treatment, and hCG Follow-Up

Molar Pregnancy: Symptoms, Treatment, and hCG Follow-Up

Learn how complete and partial molar pregnancies differ, how ultrasound and pathology diagnose them, and why treatment and hCG monitoring matter.

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Constipation During Pregnancy: Safe Relief Options

Constipation During Pregnancy: Safe Relief Options

Learn why pregnancy causes constipation, how fiber, fluid, movement, PEG, lactulose, and other laxatives fit into safe stepwise relief.

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Cholestasis of Pregnancy: Itching, Tests, and Birth

Cholestasis of Pregnancy: Itching, Tests, and Birth

Learn why cholestasis causes itching, how bile acids are tested and repeated, what treatment can do, and how fetal monitoring and birth timing are planned.

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Group B Strep in Pregnancy: Test, Labor, and Baby

Group B Strep in Pregnancy: Test, Labor, and Baby

Learn when GBS screening is done, what a positive swab or urine result means, how labor antibiotics work, and how newborns are observed.

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4 Weeks Pregnant: Development, Symptoms, and Care

4 Weeks Pregnant: Development, Symptoms, and Care

At 4 weeks pregnant, learn what is developing, which symptoms are common, what pregnancy tests and ultrasound may show, and which warning signs need care.

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5 Weeks Pregnant: Development, Symptoms, and Care

5 Weeks Pregnant: Development, Symptoms, and Care

At 5 weeks pregnant, learn what is developing, which symptoms are common, what pregnancy tests and ultrasound may show, and which warning signs need care.

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6 Weeks Pregnant: Development, Symptoms, and Care

6 Weeks Pregnant: Development, Symptoms, and Care

At 6 weeks pregnant, learn what is developing, which symptoms are common, what pregnancy tests and ultrasound may show, and which warning signs need care.

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7 Weeks Pregnant: Development, Symptoms, and Care

7 Weeks Pregnant: Development, Symptoms, and Care

At 7 weeks pregnant, learn what is developing, which symptoms are common, what pregnancy tests and ultrasound may show, and which warning signs need care.

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8 Weeks Pregnant: Development, Symptoms, and Care

8 Weeks Pregnant: Development, Symptoms, and Care

At 8 weeks pregnant, learn what is developing, which symptoms are common, what pregnancy tests and ultrasound may show, and which warning signs need care.

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9 Weeks Pregnant: Development, Symptoms, and Care

9 Weeks Pregnant: Development, Symptoms, and Care

At 9 weeks pregnant, learn what is developing, which symptoms are common, what pregnancy tests and ultrasound may show, and which warning signs need care.

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10 Weeks Pregnant: Development, Symptoms, and Care

10 Weeks Pregnant: Development, Symptoms, and Care

At 10 weeks pregnant, learn what is developing, which symptoms are common, what pregnancy tests and ultrasound may show, and which warning signs need care.

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11 Weeks Pregnant: Development, Symptoms, and Care

11 Weeks Pregnant: Development, Symptoms, and Care

At 11 weeks pregnant, learn what is developing, which symptoms are common, what pregnancy tests and ultrasound may show, and which warning signs need care.

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12 Weeks Pregnant: Development, Symptoms, and Care

12 Weeks Pregnant: Development, Symptoms, and Care

At 12 weeks pregnant, learn what is developing, which symptoms are common, what pregnancy tests and ultrasound may show, and which warning signs need care.

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13 Weeks Pregnant: Development, Symptoms, and Care

13 Weeks Pregnant: Development, Symptoms, and Care

At 13 weeks pregnant, learn what is developing, which symptoms are common, what pregnancy tests and ultrasound may show, and which warning signs need care.

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Healthy Pregnancy Guide: Prenatal Care and Safety

Healthy Pregnancy Guide: Prenatal Care and Safety

A practical guide to prenatal care, folic acid, balanced food, food safety, exercise, medicines, vaccines, mental health, and urgent warning signs.

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Pregnancy Due Date Calculator: Dates and Ultrasound

Pregnancy Due Date Calculator: Dates and Ultrasound

Learn how due dates use the last menstrual period, cycle length, first-trimester ultrasound, IVF transfer dates, and why the estimate can change.

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Pregnancy Week by Week: Development, Tests, and Care

Pregnancy Week by Week: Development, Tests, and Care

Follow pregnancy week by week from the last period through birth, with fetal development, symptoms, prenatal tests, movement, and warning signs.

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When Does the Second Trimester Start?

When Does the Second Trimester Start?

The second trimester usually starts at 14 weeks 0 days. Learn why sources differ, what develops through week 27, and which tests and warning signs matter.

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When Does the Third Trimester Start?

When Does the Third Trimester Start?

The third trimester usually starts at 28 weeks 0 days. Learn why sources differ, what changes before birth, and which tests and warning signs matter.

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