Week 3 of Pregnancy
First trimester
Baby is
about the size of a poppy seed
0.1 inches · less than 1 gram
Baby this week
- •Blastocyst is traveling through the fallopian tube toward the uterus
- •Cell division is happening rapidly
- •Genetic material from both parents is combining
You this week
- •Possible implantation cramping or light spotting (if implantation occurs this week)
- •Tender breasts may continue
- •Mild fatigue
- •You may not feel any symptoms yet—that's completely normal
This week's tips
- •Continue taking prenatal vitamins with folic acid daily
- •Stay hydrated and eat balanced meals when you can
- •Avoid smoking, alcohol, and recreational drugs
- •Get adequate rest—your body is working hard even if you don't feel it
- •Consider when you'd like to tell your healthcare provider or take a pregnancy test (waiting until you've missed your period gives more reliable results)
Looking ahead
Next week, implantation should be complete, and you may be able to detect pregnancy with a home test if your cycle is regular. Your hormone levels will start rising noticeably, which may bring early pregnancy symptoms.
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