Idk i feel terrible and worried ;(

So, i absolutely adore my bf to the ends of the Earth, i love him to death and so does he. We have a little problem tho, whenever we get into bed just to sleep we always end up having sex and we always feel bad afterward because we know we aren't always being careful.. so it leaves me worried to death about having a child and he always tells me everything will be ok. He never cums in me and sometimes we do use a condom but i want to stop having sex for awhile just to make me feel better.. idk .. im all over the place.. sorry :(.