Week 15
Your baby is the size of a Apple
Baby Size
Apple
Length
4.0 in (10.1 cm)
Weight
2.5 oz (70 g)
Trimester
Second Trimester
Your Baby at Week 15
Your baby is the size of an apple at 15 weeks. Bones throughout the body are hardening, and the pattern of hair on your baby's scalp is becoming visible.
Key milestone: The baby's bones are hardening (ossification). The scalp hair pattern forms.
Your Symptoms
Energy is up. Nasal congestion ('pregnancy rhinitis') may begin. Mild forgetfulness ('pregnancy brain').
Tip for This Week
Start applying stretch mark cream or oil if you haven't already.
Your Body at Week 15
The second trimester brings a welcome shift — your energy returns as hormone levels stabilize. Your uterus is now rising above the pubic bone, and your baby bump is becoming noticeable. Increased blood flow may give you that 'pregnancy glow,' but it can also cause nasal congestion and gum sensitivity.
Your baby at week 15 is the size of a Apple, measuring about 4.0 in (10.1 cm) and weighing roughly 2.5 oz (70 g). Your baby is becoming more active, and you may notice patterns in their movements — especially after meals or when you're resting.
Your Baby's Development This Week
Your baby is the size of an apple at 15 weeks. Bones throughout the body are hardening, and the pattern of hair on your baby's scalp is becoming visible. The key milestone this week is that the baby's bones are hardening (ossification). the scalp hair pattern forms.
The second trimester is when pregnancy becomes more tangible. Your baby's movements grow from subtle flutters to definite kicks, and their senses are awakening to the world outside. This is a beautiful time to begin bonding practices like daily voice notes.
This week's voice theme
“Sturdy and strong — a little frame built with love.”
Imagine hearing this every morning — a voice note from your baby that evolves week by week.
Hear your baby's voice →Frequently Asked Questions
What is pregnancy brain?
Mild forgetfulness and brain fog caused by hormonal changes, sleep disruption, and the mental load of pregnancy.
Can I feel the baby move at 15 weeks?
Some women, especially those who've been pregnant before, may feel early flutters (quickening) around now.