Is it time

... is it time that we had the talk? We've been together for 2 going on 3 years, but known each other since 2011. So now he wants to cum in me, I told him we have to talk about it. It'll be sexy if he did, but I don't trust my body. I have PCOS and severe anemia. And the thought of carrying a child scares me, I've read stories here and done research, yet can't bring myself to any of it. My doctor's already explained to me it may be hard for me to ever get pregnant the natural way, but all it takes is 1 time and bam you're pregnant!!! Carrying a child or being able to I wouldn't mind, but its everything that comes with it or I could pass away during child birth because loss of blood or preclampsia or still born or even both of us could pass on because of my severe anemia. I try to stay positive because I would some day like to have a healthy child that doesn't have to go through the same medical problems I'm going through now, but how do I tell him that so I wont scare him like my doctors did to me. He's been supportive since before we gotten back together, up until now, shucks he's even asked what he could do to help me. So how do I have this talk with him, how do I know the signs, unless I'm looking into this too much, like knock me up and leave or not even claim this unborn child, heard and seen too many stories, any suggestions on this?