Precum??

Me and my boyfriend do anal because I don’t want to get pregnant and he doesn’t want to get me pregnant but when we do anal he goes in raw and pulls out before he cums but after I feel stuff coming out of my butt and it’s like white and creamy so I was wondering if it is Precum and if we should start to use condoms. I’m on birth control but I’m still scared to get pregnant. We were both each other’s first and we’ve been together for almost two years but just looking for advice thank you ladies!♥️