37 weeks pregnant

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Third trimester

Week 37+ 0d

21 days to go

Early term: your baby could safely arrive any time

About the size of a bunch of swiss chard48.6 cm2.86 kg

Conception40 weeks

How you’re feeling

Note symptoms as they come, to spot patterns and bring to your appointments.

Nothing noted this week.

Urgent warning signs

The CDC says these are urgent warning signs, during pregnancy and in the year after. If you feel like something just isn't right, or you aren't sure if it's serious, talk to your health care provider. Be sure to tell them if you are pregnant or were pregnant within the last year. In an emergency, call 911.

Headache that won't go away or gets worse over time
Dizziness or fainting
Changes in your vision
Fever of 100.4°F or higher
Extreme swelling of your hands or face
Thoughts about harming yourself or your baby
Trouble breathing
Chest pain or fast-beating heart
Severe nausea and throwing up
Severe belly pain that doesn't go away
Baby's movement stopping or slowing during pregnancy
Vaginal bleeding or fluid leaking during pregnancy
Severe swelling, redness, or pain of your leg or arm
Overwhelming tiredness

ACOG says to call your ob-gyn about any bleeding in pregnancy, and right away or go to the hospital if it's later in pregnancy. Regular contractions or fluid leaking before 37 weeks: call too.

If you're thinking of harming yourself or your baby, or in danger now, call 911 or call or text 988 right away. For support any time, the National Maternal Mental Health Hotline is 1-833-TLC-MAMA (1-833-852-6262), call or text.

Today’s read

Something new from this week, every day.

Baby this week

From 37 weeks a baby is called early term. The lungs and brain are still maturing in important ways, which is one reason advises against a planned birth before 39 weeks without a medical reason.

For the partner

Any day now.

Keep your phone charged and on, and stay reachable.
Learn the contraction timer on the Today tab. You can time from your own phone and both of you will see it.
Know the birth plan well, so you can speak up for them when it counts. If it isn't filled in yet, do it together, and it's there to pull up at the hospital.

And look after yourself too. Partners can feel anxious or low in pregnancy as well, and it’s worth talking about.

Name shortlistPlus · free during early access

Just for the two of you. Add names and react to each other’s.

IrisYou both love it
Sam loves it
Theo
Sam loves it
June
Waiting for the other vote
Otis
Sam doesn't like it

Is it safe?

Foods, medicines and activities, with what the FDA, CDC, ACOG and NHS say.

Often asked

Deli meat and hot dogs
Only heated
Not cold: only reheated until steaming hot (165°F). Listeria can grow even in the fridge.
FDA: Food safety for moms-to-be
Sushi with raw fish
Avoid
Raw fish can carry bacteria and parasites. Cooked or vegetable rolls are fine.
FDA: Food safety for moms-to-be
Caffeine
Limit
Under 200 mg a day, about one 12-ounce coffee. Count every source.
ACOG: How much coffee can I drink while pregnant?
Acetaminophen (Tylenol)
Ask your doctor
ACOG calls it the safest first choice for pain and fever in pregnancy, at the lowest dose for the shortest time. In 2025 the FDA said it would update the label about a possible link with autism, while saying a cause hasn't been shown; ACOG strongly disagrees with that link. Ask your doctor.
ACOG: Acetaminophen in pregnancy (2025)
Hot tubs and saunas
Avoid
Overheating, especially early in pregnancy, is linked to birth defects.
ACOG: Saunas and hot tubs in pregnancy
Changing cat litter
Avoid
A toxoplasmosis risk. Have someone else do it, or wear gloves, change it daily and wash your hands.
CDC: Preventing toxoplasmosis

General information, not medical advice. Your care team knows you best.

Weight

Weigh-ins through the pregnancy, with the typical range for this week.

Add a weight whenever you weigh in, at home or at an appointment.

About the ranges

Every body and pregnancy is different. These are general ranges from the National Academies (2009), which the CDC and ACOG use. Your care team may set a different goal for you.

BMI before	One baby	Twins
Under 18.5	28 to 40 lb	Ask your provider
18.5 to 24.9	25 to 35 lb	37 to 54 lb
25 to 29.9	15 to 25 lb	31 to 50 lb
30 or more	11 to 20 lb	25 to 42 lb

Birth plan

Your preferences for labor, the birth and the first hours, to share with your care team. Tap what matters; print it to bring along.

Open the birth plan

Bump diary

A photo a week, to watch the bump grow. Missed one? Pick its week below.

Memories

Pregnancy moments

3 saved so far.

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