All pregnancy weeks

Pregnancy week 4

Trimester 1 · Baby is about a poppy seed

The embryo settles into the uterine lining and the placenta starts to form.

How your body may feel

  • A missed period may be the first clue.
  • Tender breasts and mild cramping are common.
  • Tiredness may begin early.

Self-care this week

  • Take a home pregnancy test if your period is late.
  • Continue folic acid 400 micrograms daily.
  • Stop alcohol completely.

Milestone

A positive pregnancy test is usually possible now.

Seek care urgently if you notice

  • Heavy bleeding, or bleeding with clots
  • Severe pain on one side of the lower abdomen or shoulder tip pain
  • Fever above 38°C
  • Vomiting so much you cannot keep fluids down for 24 hours
  • Fainting or severe dizziness