once a month or even every 6 weeks just aint enough... HELP ME OUT PLEASE?

You asked the question of him and he said because you aren't on the pill and he doesn't want to go through an abortion again, and you still don't get it? Get on the pill and see what happens. Come back here in 3 months if you aren't getting it enough. That or kick him to the curb and find someone that appeals to you more.