Your baby this week
Your baby's head is coming into better proportion with the body. Your baby swallows amniotic fluid and passes it back as urine. At checkups, your provider may be able to pick up the heartbeat with a handheld Doppler.
Week 14 starts the second trimester, which many people find the easiest stretch of pregnancy. Your baby's facial features are more defined, the neck is lengthening and the head is held up better. The thyroid gland has started making hormones, and the spleen is helping to make blood cells. For you, nausea and tiredness may ease and your appetite may grow. It's a good time to plan regular exercise: most healthy pregnant people are advised to get about 150 minutes of moderate activity a week, such as walking, swimming or prenatal classes, unless your provider says otherwise. Avoid activities with a risk of falling or of a blow to the belly.
By the numbers
Week 14 covers days 98 to 104 counted from the first day of your last period, which is 35% of a 40-week pregnancy. About 182 days remain until a 40-week due date. Since last week, an average baby gains about 0.6 oz (17 g). By date of conception, your baby is about 12 weeks old.
Pregnancy is dated from the first day of your last period, so conception happens around week 2. Your due date is 280 days (40 weeks) from that day, and an early ultrasound may adjust it.
Your body
Welcome to the second trimester, which many people find the most comfortable stretch. Energy often returns and nausea usually fades.
Tests and to-dos this week
If you're considering the quad screen, it's done between 15 and 22 weeks. This is also a good time to look into childbirth classes.
No routine test falls in this exact week; your provider schedules your regular checkups.
Coming up: Quad screen (optional) (from week 15). Full prenatal visit schedule
Tips for the second trimester
- Most healthy pregnant people are advised to get about 150 minutes of moderate activity a week, such as walking or swimming.
- Your recommended weight gain depends on your pre-pregnancy BMI, and gain usually speeds up in the second trimester.
- Once you feel your baby regularly, learn their usual pattern; a change in pattern matters more than any count.
- The flu shot is recommended at any point in pregnancy during flu season.
Call your provider or labor and delivery right away if you have:
- vaginal bleeding or leaking fluid
- regular contractions or pelvic pressure before 37 weeks
- a severe headache, vision changes, or sudden swelling of the face or hands
- a fever of 100.4 °F (38 °C) or higher, or painful urination
- after 24 weeks, your baby moving less or differently
In an emergency, call 911.
Last week and next week
Frequently asked questions
How big is the baby at 14 weeks?
About the size of a peach: about 3.2 in (8.1 cm) · 3.2 oz (90 g), measured crown to rump. These are rounded averages, and every baby grows at their own pace.
How many months is 14 weeks pregnant?
14 weeks is in month 4 and the second trimester. About 26 weeks (182 days) remain until a 40-week due date. Months are approximate; providers count weeks and days.
How much exercise is safe in pregnancy?
In an uncomplicated pregnancy, about 150 minutes of moderate activity a week, spread over several days, is the usual advice. If you have a medical condition or complication, check with your provider first.
What's the next test or appointment after week 14?
Next up: Quad screen (optional), from week 15. Your provider may schedule things differently depending on your health and local practice.
Sources
- WHO Fetal Growth Charts (Kiserud et al., PLoS Med 2017)
- INTERGROWTH-21st crown-rump length standard (Papageorghiou et al., 2014)
- Hadlock et al.: In utero fetal weight standard (Radiology 1991)
- NHS: Week-by-week guide to pregnancy
- NHS: Pregnancy symptoms you need to get help for
- ACOG: How Your Fetus Grows During Pregnancy
- ACOG: Routine Tests During Pregnancy
- ACOG: Prenatal Genetic Screening Tests
- CDC: Vaccine Recommendations Before, During, and After Pregnancy
- Office on Women's Health: Prenatal care and tests
- Hungarian Decree 26/2014 (IV. 8.) EMMI on prenatal care
- NNGYK (Hungary): 2026 vaccination methodology letter
- ACOG – Group B Strep and Pregnancy (Committee Opinion 797)
- ACOG – The Rh Factor
Last reviewed: November 14, 2026 · Kitpebble editorial team
This page is for general information. It isn't medical advice or a diagnosis and doesn't replace your OB-GYN or midwife. Sizes are rounded averages. Our editorial policy