First trimester · 32 weeks to go
| Fact | Week 8 |
|---|---|
| Days of pregnancy | 50–56 since LMP |
| Gestational age span | 7w0d to 7w6d |
| Trimester | First trimester (weeks 1–13) |
| Pregnancy month | Month 1 (weeks 1–4) |
| Average length | 0.63 in (crown to rump) |
| Average weight | not yet measurable |
| Size comparison | a kidney bean |
| Weeks remaining | 32 (40-week due date) |
Week 8 brings visible fingers and toes forming in the paddles, and the embryonic tail is disappearing. Breathing tubes extend from the throat toward the developing lungs. Everything is tiny but increasingly recognizable as a future person.
The upper lip and nose take shape, eyelid folds begin, and nerve cells branch out to connect with each other. The heart now beats at 150 to 170 bpm. Cartilage is replacing the early soft tissue in the arms and legs.
Gestationally, week 8 means you are 7 weeks and 0 to 6 days pregnant, day 50 to day 56 counted from the first day of your last period. This is week 8 of the first trimester (weeks 1–13). Prenatal appointments run about every four weeks in this stretch. Week 10 brings graduation from embryo to fetus. If your cycle runs longer or shorter than the 28 days the due-date math assumes, your ovulation date and due date shift with it, which is why a first-trimester ultrasound remains the gold standard for dating. Every number on this page is an average across pregnancies; your own scan dates and your baby's measurements are what actually describe your week 8.
Get fitted for a supportive bra; breast changes continue all pregnancy. Start Kegel exercises, which pay off in labor and recovery.
Weeks of pregnancy don't map cleanly to calendar months, but the common division puts week 8 falls in month 1 of pregnancy (weeks 1–4). Week 8 is part of the first trimester, which runs from week 1 to week 13. Gestationally, week 8 means you are 7 weeks and 0 to 6 days pregnant.
At week 8 there isn't much to measure yet; the baby is on the scale of a kidney bean. Measurable length in inches begins with the embryo stage in the next few weeks.