Hi my girlfriend is pregnant for the second time, her last pregnancy resulted in a miscarriage at approximately 6 weeks, she is worried this time around and is curious id adominal pain is normal at about 2 to 3 weeks pregnant?

No not normal. She should have a good OBYGYN if she has had previous problems. Maybe she should be the one posting.

In some cases yes this is normal because her uterus is making room for baby. But since she's had a miscarriage I would say go to the doctor

It really depends on what kind of abdominal pain. Most pregnancies aren't even identified at 2-3 weeks. Is she certain she is pregnant or is there a chance of this being her period coming?

I agree, it is first nearly impossible to know you are 2 or 3 week pregnant, most will not even show positive in testing at that date.

There is normally no signs or pains what so ever at 2 week,

1. how do you know she is pregnant ?

If you know for sure, and there is pain, a trip to doctor, since past miscarriage issues