I think you are making some rash decisions now about trying to have children. Some of it is because your age, some because of your joy of winning your BF back and maybe some hidden feelings that a child will keep him from straying again.
It was just a month ago that your BF was lost and needing to get on AD's and see an IC. And he has been on AD's before only to end up saying they do not work. I see you denying some of the great advice that Naej and Walking is mentioning. I noticed your frustration post on FB about getting away from DB site and I suspect it may be because of the posts by Walking and Naej which may be triggering some doubts you have in your mind that you dont wish to address.
Why do you and BF not get married?
Why cant you wait at least 6 months or more to see whether you BF is really back before trying to conceive? Or are you of the mindset that if the R does not work out that you would still prefer raising a child as a single parent?
I dont know. Maybe I am reading it wrong, but going back the last couple months, I just get a strange vibe that you are going too quick on trying to get pregnant before making sure that the R is fully reconciled.