<human>: Can you condense the text into a few key points?

My boyfriend and I are in college and have been together for 3 years, we're third-year students in a four-year program.  We have a loving relationship and we're close friends too.  We've discussed engagement and he's mentioned proposing to me after graduation, and I'm thrilled about that.

Maybe I've been reading too much reddit and having unrealistic expectations, but I'm a little worried about our future sex life.  We're both virgins--he wanted to wait for marriage for non-religious reasons.  This isn't a problem for me, I usually masturbate to take care of my relatively high sex drive.  However, he has often said that sex is impractical until we're ready to take care of a possible child.  By this he means financially stable, both employed, with a home.  Unfortunately, this won't be for a long, long time.  I'm planning on medical school and here in the US that involves a 4 year stint in school and a 3 year residency for my field, so I won't be a doctor till I'm at least 29, let alone established and financially stable.  He plans to enter the workforce after graduation with a comp sci degree, so he'll have money.

I'm on birth control and we can always buy condoms, but he says he wants to be 100% sure and doesn't trust even the smallest chance of pregnancy (he has some OCD-like behaviors if that's important at all).  I guess my question is, is his assertion realistic?  Will I be able to masturbate away my will to have sex for the next several years?  I do love this man and want to start a family and life with him, so I'm not even considering a breakup.  Also, if my friends ask me about my married sex life, what will I say?
<bot>: Boyfriend says no sex till we're financially ready for a child, even if we're married.  I'm wondering if this is doable/realistic.