Does it go in your back at all? A lot of women have galbladder problems (stones, inflammation etc.) in pregnancy, and after. Something about pregnancy does it! I would contact your Dr. Probably isn't galbladder but may be, best to get it checked out. Good Luck, hopefully just some gas pains!!
I'm not sure what it could be but I remember with my 2nd pregnancy, I got this horrible pain and the upper abdominal area. It was so bad infact that it woke me up from a dead sleep. I was about 10 weeks pregnant. I wasn't too concerned about the baby because of how high up the pain was. I thought if it was the baby, the pain would probably be lower. Anyway, I went to the ER just to be safe. They really couldn't ever give me a reason or cause for that pain. They made sure the baby was okay. I, to this day, don't know what that pain was. I still get it from time to time and I have no idea what it is but I don't think that it is your baby. I'm sure your baby is fine but if it really is worrying you, you should probably call your doctor just to be safe and to give you peace of mind.