What are signs of pregnancy in the first month in a teen?

Missed period: The first sign of pregnancy in any woman is a late or missed period.

Same: Symptoms of pregnancy as a teenager are similar to pregnancy at any age. Nausea, vomiting, bloating, breast changes, and fatigue are all common symptoms. Unfortunately, no constellation of symptoms reliably diagnoses pregnancy. Take a home pregnancy test if you think you are pregnant. If pregnant, see your doctor as soon as possible.