Week 4

fetal development

Hotspot: 410,710

A missed period is usually the first sign that you're pregnant.

Hotspot: 525,140

Hormonal changes may make your breasts feel tender and swollen.

Hotspot: 400,535

By the end of this week, a home pregnancy test may be positive.

Hotspot: 530,350

Changing hormone levels cause many of your pregnancy symptoms.

WebMD Medical Reference Reviewed by Traci C. Johnson, MD on June 25, 2018
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