Considering getting pregnant by “not trying not preventing” Am i crazy?

I’m 18 and I have PCOS and potentially endometriosis, Just haven’t had the laparoscopy surgery yet. I’ve also had PID and Cervicitis and chlamydia that got left untreated for almost 2 months. These are all fertility factors I’m really concerned that i can’t get pregnant and the more time I wait, I’ll have less chance.

My boyfriend is 24 and also wants one. I just don’t wanna wait till it’s too late. I rather have one early than never have one at all. I’ve always known I’ve wanted to be a mother from Such a young age and it would kill me to not have one, just as it upsets me everyday to think I might not be able to. By not trying not preventing I just mean having unprotected sex whenever the time comes and let go and Let God. Thoughts? Advice?