At 7 weeks
At 7 weeks pregnant your baby is about the size of a chickpea (kala chana), around 10 mm long from head to bottom. The brain is growing faster than the rest of the body, eyelids are beginning to form and the heart beats at around 150 to 180 beats per minute. Your blood volume is rising, which can leave you thirstier than usual.
Your Baby at 7 Weeks
Because the brain is growing faster than the rest of the body, your baby has a large forehead, and is making around 100 new brain cells every minute. Small dimples mark where the nose and ears will be, and the eyelids are beginning to grow over the eyes (NHS).
The limb buds are forming cartilage that will make the bones of the arms and legs. The arm buds are getting longer, and their flattened ends will soon become tiny hands (NHS).
Nostrils and lips have formed, and the stomach, kidneys and lungs are developing. Your baby lies inside a fluid-filled amniotic sac, and the heart is beating at around 150 to 180 beats per minute (Pregnancy, Birth and Baby).
Your Body This Week
More blood is pumping around your body than 7 weeks ago, and over the pregnancy the volume will rise by up to 50%. That can make you thirstier, so the NHS suggests about 8 medium glasses of fluid a day. Your womb is now about the size of a lemon (NHS).
Changing hormones may leave you more emotional and tired than usual. Breasts can be swollen, with a darker areola, and some women become constipated; more water and fibre from vegetables, fruit and whole grains can help (Pregnancy, Birth and Baby).
When to call your midwife or doctor: Don't ignore strange symptoms such as feeling itchy all over; most aches are part of a normal pregnancy, but talk to your midwife or doctor just in case. See your doctor if you have any bleeding.
Garbh Sanskar This Week
A small daily practice for this stage, from Mamta’s 1:1 sessions. It is tradition and gentle self-care, not medical advice, so keep every check-up and follow your doctor or midwife first.
- Mantra: The Gayatri mantra, from the Rig Veda, is a meditation on the radiance of Savitr and a prayer that our minds be stirred to insight. Traditions differ on who chants it, so follow your family's practice; if it suits you, recite it softly for a few minutes, as explained in Garbh Sanskar mantras.
- Music: Pair your music with rest: play a favourite bhajan while you put your feet up after lunch, the kind of break Pregnancy, Birth and Baby encourages at this stage.
- Gentle movement: Mamta's teaching this week is tadasana (mountain pose): stand with feet hip-width apart, arms relaxed, and take slow, steady breaths without holding them. Stay for a few minutes, only with your doctor's or midwife's clearance.
- Food: Traditionally, Charaka's second month still centres on milk, and a glass of milk adds to the fluids your body needs now, alongside the iron, calcium and folic acid your doctor recommends. To ease constipation, fill your vegetarian plate with vegetables, fruit and whole grains.
- Garbh samvad (a line to say to your baby): Your heart is beating fast, and mine is full of you.
Questions About Week 7
Why am I so thirsty at 7 weeks pregnant?
Your blood volume is rising and will increase by up to 50% over the pregnancy, to carry oxygen and nutrients to your womb. The NHS suggests about 8 medium glasses of fluid a day, such as water, fruit tea or milk.
How fast is my baby's heart beating at 7 weeks?
Around 150 to 180 beats per minute, according to Pregnancy, Birth and Baby. At the same time your baby's stomach, kidneys and lungs are developing.
Is constipation common at 7 weeks pregnant?
Some women do become constipated at this stage. Pregnancy, Birth and Baby suggests drinking more water and eating foods high in fibre, such as vegetables, fruit and whole grains.
Practise With Mamta, Wherever You Are
Mamta guides expecting mothers through private 1:1 Garbh Sanskar sessions online, scheduled in your own time zone, from the first trimester to the last week. Start with a free conversation on WhatsApp or read how sessions work.
Sources
Mamta is not a doctor. Medical points on this page come from the sources below, checked in October 2026. Sizes are approximate and babies vary; your scan report is what matters.