I really want another baby.....

Samantha
I am 26. I have a 2 year old daughter already. She wasn't planed at all. But my boyfriend and I want another baby. But we can't seem to get pregnant... It's very frustrating since I have a baby already. It doesn't make since to me. I keep track of when I ovulate and the best time to have sex. For the past month I have been nauseous at random times of the day. And I had bad abdominal pains. I have 4 days before my period. I'm nervous and scared all at the same time.