Week 2
Your baby is the size of a Poppy seed
Baby Size
Poppy seed
Length
—
Weight
—
Trimester
First Trimester
Your Baby at Week 2
Week 2 is ovulation week! Your body releases an egg, and if sperm is present, conception can occur. This is the moment it all begins.
Key milestone: Ovulation occurs. The egg travels through the fallopian tube.
Your Symptoms
Increased cervical mucus, mild cramping on one side (mittelschmerz).
Tip for This Week
Track your fertile window using our ovulation calculator for best conception timing.
Your Body at Week 2
During the first trimester, your body is working overtime to build the placenta and support rapid embryonic development. Hormones like hCG, estrogen, and progesterone surge, causing many of the symptoms you're experiencing. Your blood volume is already increasing, and your uterus is beginning to expand — even if you can't see it yet.
Your baby at week 2 is the size of a Poppy seed, measuring about — and weighing roughly —. The focus is on forming all major organ systems that will sustain your baby through the rest of pregnancy and beyond.
Your Baby's Development This Week
Week 2 is ovulation week! Your body releases an egg, and if sperm is present, conception can occur. This is the moment it all begins. The key milestone this week is that ovulation occurs. the egg travels through the fallopian tube.
The first trimester is a period of incredible transformation. From a single cell to a fully formed fetus in just 12 weeks — your baby's development is happening at an astonishing pace. Each week brings new organs, new abilities, and new reasons to marvel at the process.
This week's voice theme
“The first hello — a tiny spark of possibility.”
Imagine hearing this every morning — a voice note from your baby that evolves week by week.
Hear your baby's voice →Frequently Asked Questions
When does conception happen?
Conception typically occurs within 12-24 hours of ovulation, which happens around week 2 of your pregnancy count.
How do I know if I'm ovulating?
Signs include clear egg-white cervical mucus, mild pelvic pain, increased libido, and a slight rise in basal body temperature.