Baby by Week
Week 2

Your week 2 guide

Conception may happen around this time, although pregnancy dating has already reached week 2.
Trimester

1

Month

1

Weeks left

38

Size at a glance

Comparison
Too early to compare
Length
Too small to measure
Weight
Too small to measure
Measurements are approximate. Healthy babies grow at different rates.

Baby development

An ovary may release an egg during ovulation.
The uterine lining is thickening to support implantation.
A home pregnancy test is usually too early because hCG may not yet be detectable.

Your body

Ovulation can cause clear cervical mucus or a brief one-sided pelvic twinge.
Bloating, breast tenderness, or a stronger sense of smell can occur but are not proof of pregnancy.
Many people notice no change at all.

This week's checklist

Continue a clinician-approved prenatal vitamin with folic acid.
Track ovulation only if it feels useful rather than stressful.
Keep movement, nutrition, sleep, and hydration steady.

Call your care team

Seek urgent help for severe one-sided pain, shoulder pain, heavy bleeding, dizziness, or fainting.
Ask a clinician before changing prescription medicines or supplements.

Medical information, not medical advice

Every pregnancy is different. Use this guide for general education and follow the advice of your own maternity care team. Do not delay urgent care because of something you read here.