Pregnancy week by week · trimester 1
🫐 7 weeks pregnant: your baby is about the size of a blueberry
At 7 weeks pregnant, your baby is about the size of a blueberry, with tiny arm and leg buds and the beginnings of a face.
Your baby this week
Your baby is about the size of a blueberry. The tiny buds that will become arms and legs are lengthening, and the start of hands and feet are taking shape at the ends like little paddles. The brain is growing quickly, and the face is beginning to form, with small dark spots where the eyes will be and the beginnings of nostrils. Inside, the heart is developing its chambers and the liver and kidneys are getting started. Your baby is also moving, though far too small for you to feel.
You this week
Nausea, tiredness and tender breasts may be at their busiest. You might notice more saliva, a stronger sense of smell, mood swings, or bloating that makes your jeans feel snug long before there is a bump. Some mums get mild constipation, which more water and fibre can ease. If sickness is wearing you down, you do not have to just put up with it; there is help available. Look after yourself first this week, and let the little things wait.
Kind things to do this week
- Drink little and often through the day, even sips count when you feel sick.
- Add fibre with fruit, veg and wholegrains to help with constipation.
- Start a note on your phone for questions as they pop into your head, ready for your booking appointment.
Appointments around now
Your booking appointment with a midwife should fall between 8 and 10 weeks. If you have not heard anything yet, it is fine to chase it.
Questions to ask your midwife
- Which screening tests will I be offered, and when?
- Who do I call out of hours if I am worried?
When to call your midwife or maternity unit
Please call your GP, midwife or NHS 111 if you have any bleeding, tummy pain that does not settle (especially low down on one side), or you are being sick so often you cannot keep fluids down. You are never wasting anyone's time.
OBubba from bump to baby
Follow your pregnancy week by week, free.
OBubba is free through pregnancy, with a weekly update, kick counting and contraction timing. On the day your baby arrives, the same app becomes your baby tracker.
Questions
Why am I so tired at 7 weeks pregnant?
Your body is building a placenta and making more blood, and hormone levels are rising fast. Early tiredness is very common and usually eases in the second trimester.
What if I cannot keep anything down?
If you are being sick many times a day and cannot keep fluids down, contact your GP, midwife or NHS 111. Severe sickness (hyperemesis gravidarum) is treatable, and you deserve support.
Not sure how far along you are? Use the due date calculator.
Sources
OBubba gives general information. It is not medical advice and does not diagnose anything. Your midwife and maternity unit are always the right people to ask, any time of day or night.