Feel like it’s time to leave

I’m 32 years old - no kids- current boyfriend talked me into an abortion at 28 because we were experiencing extreme stress and financial hardship at the time saying we would try again when the time is right- now he says he doesn’t want any more kids (he’s 40 with a 12 yr old and 21 yr old) but “if it happens it happens” yet he pulls out but claims “sometimes I don’t pull out in time” and “sometimes I don’t pull out at all”<—- in that case it’s always 2 days before my period and I’ve already ovulated-

I just think I should leave at this point if he can’t commit- because honestly I told him since the beginning of this 4 year relationship that it was a deal breaker and he said he was on board with giving me a baby