Skip to content

Health & Pregnancy

Font Size

Week 18

fetal development

Hotspot: 118,460

You may notice more low back pain, especially at the end of the day.

Hotspot: 490,530

You may notice a dark line running from your belly button to your pubic area.

Hotspot: 435,715

Your doctor may do a vaginal ultrasound to check on your cervical length and the location of your placenta(s).

Hotspot: 255,600

Curious about your babies' sex? An abdominal ultrasound this week can tell you.

WebMD Medical Reference

Pregnancy Week-By-Week Newsletter

Delivered right to your inbox, get pictures and facts on
what to expect each week of your pregnancy.

Today on WebMD

hand circling date on calendar
Track your most fertile days.
woman looking at ultrasound
Week-by-week pregnancy guide.
Pretty pregnant woman timing contaction pains
The signs to watch out for.
pregnant woman in hospital
Are there ways to do it naturally?
slideshow fetal development
pregnancy first trimester warning signs
What Causes Bipolar
Woman trying on dress in store
pregnant woman
Close up on eyes of baby breastfeeding
healthtool pregnancy calendar
eddleman prepare your body pregnancy