To much?

Me and my bf just started having sex. Lost my virginity 3 days ago and every since that day we have had sex like 3 or 4 rounds a day. He cums every time. We are both horny teens 😂 he can be in my bed playing fortnite and get hella horny, and my god he knows how to turn me on. We end up having sex. I’m just lookin for some advice? My orgasms haven’t been as strong since we have been doing this so much. But I’m just looking for advice..should we not be having this much sex in one day? Could it harm my body or his in any way? Any tips would be appreciated.