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Trimester 1

7 weeks pregnant: Brain growth begins in earnest

Here is what to expect this week for you and your baby.

Baby Size Blueberry 1 cm A blueberry (~1 cm). Brain develops ~100 new cells per minute.

Baby Development

  • Brain growing rapidly — 100 new cells per minute
  • Arms and legs developing paddle-like hands and feet
  • Liver begins producing red blood cells

Common Symptoms

  • Acne breakouts due to hormonal changes
  • Excessive saliva production
  • Constipation
  • Vivid dreams

Tips & Advice

  • Include fibre in every meal to prevent constipation
  • Prenatal yoga or gentle stretching can help
  • Talk to your partner about feelings and expectations

Nutrition Guide

  • Fibre-rich foods: isabgol, oats, guava
  • Calcium: sesame seeds (til), nachni/ragi porridge
  • Vitamin A: carrot, pumpkin (kaddu), sweet potato

Medical Checklist

When to see your doctor at week 7

Some symptoms need attention right away. Contact your doctor or go to the nearest hospital if you notice any of these:

  • Heavy bleeding (soaking a pad within an hour)
  • Severe or persistent abdominal or pelvic pain
  • Fever above 38°C (100.4°F)
Find a women's-health doctor near you

Frequently asked questions

Why am I so tired?

Progesterone is sedating and your body is building the placenta — fatigue this early is very common.

Can I drink coffee?

Limit caffeine to ~200 mg/day (about one 8 oz cup of brewed coffee).

Is food aversion normal?

Yes — usually fades after the first trimester.

For partners

Encourage early bedtimes — fatigue at week 7 is real.

Prepare for your OB visit

  • Severe enough to consider anti-nausea medication?
  • Restrictions on travel right now?
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This guide is for informational purposes only and does not replace professional medical advice. Always consult your doctor or healthcare provider for personalised guidance during pregnancy.