we try and try but continue ending up with a negative

Taylor
Here lately I feel like everywhere I turn another girl is pregnant. I'm happy for them I really am but I wonder desperately why am I not getting pregnant?? My fiancé and I have been trying for months now. My step sisters laugh bc it hasn't happened yet (no they don't care about me at all) one step sister even said "only took me one try" could there be something wrong with me? I was born 12 weeks early and doctors thought I wouldn't be able to concieve but they said being born prematurely hasn't affected me at all just one cyst on my spine that was easily removed I'm healthy. I eat healthy and take care of my self. I don't smoke or drink. I want so badly to have a baby but I'm starting to loose hope. Why are there girls out there who can have three or four kids but not care about them or do drugs while pregnant or loose them to cps or family members. It just gets to me. What can I do to concieve. I've been to the doctors. I haven't taken birth control in years he haven't used condoms in over two years now nothing is working. Any suggestions..