I am in your SAME EXACT situation. I had a daughter in June 2008. I too am trying to have another child and have been cramping ALL month long. Do you too feel bloated. I've never had this problem before and its stressing me out on what could be wrong. I am even thinking it could be early menopause since my mom had it earlier than most woman.
I was thinking edometriosis also. What about ovarian cysts? I had severe cramping all the time also, and my ob-gyn did an ultrasound and found the ovarian cysts; 3 at that.
Does it hurt on one side more than the other? Does it kinda just stop you in your tracks and make you start sweating? If so it might be endrometriosis. My doc has me on birth control to stop the cramping but as soon as I am off it man about 2 weeks before my period I feel like dying!