My girlfriend is pregnant and is starting to itch all over a lot at night.....any reasons why?

Hormones: As her hormones change, itching is not uncommon.

Itching: It's not unusual to itch with pregnancy. Sometimes it is a minor problem solved with creams and antihistamines. Rarely it can be a sign of more serious skin diseases so it is always good to see a dermatologist to get checked.

Pregnancy itching: Some women experience a very severe itching in late pregnancy. The most common cause of this is cholestasis. The normal flow of bile is affected by amounts of pregnancy hormones.