My husband and I had separated for a while and when we got back together I found out I was pregnant. I am about 3 weeks pregnant and I was wondering if there was a possibility that I could get a DNA test done while being pregnant?

While an amniocentesis can be done to determine paternity, due to the risks and expenses, it is not done for paternity reasons.

Unfortunately you will have to wait for the birth of the baby for a paternity test.