My boyfriend and I have been together for 4 years, and have had unprotected sex for that long. No condoms, no BC and he will just pull out every day. I begin to think maybe I'm unfertile? I'm only eighteen years old and my mother had me at my age by having unprotected sex for the first time so I know she was very fertile, so it worries me that I will never be able to have kids? Or maybe his precum just isn't strong enough to get me pregnant? I do not want to be pregnant, by all means. It just makes me think maybe I'm not? Any suggestions..