Breeding kink contraceptives

Me (19F) and my partner (19M) are struggling a bit, I have a breeding kink the thing that arouses me is mostly the creampie part and the fact that I feel like his, I don’t want kids RIGHT NOW we have been together for 7 years (We started dating early on in our lives) so of course we have plans of having a family but the economy is crazy, we’re young, and we’re both in college. We both hate condoms and I was on bc but the side effects were too much for me, should I just get that arm implant thing? (Sorry for no TL;DR idk how to summarize this)