I’m scared

Okay so I had my daughter almost 2 months ago January 24th she will be 2 months. I’ve been wanting to have sex with my partner but won’t because well 1 I’m not in BC and 2 he’s not fixed and he has said he won’t use a condom but I really want to have sex with him again but I’m scared to because i don’t want to get pregnant again I already have a 9 year old he has a 5 and 4 year old and now we have a month n a half yea old baby.. we both don’t want anymore kids so what can I do ladies?