Pleasing my man???

So it is so hard for my guy to cum. I have never been with a guy like this. I was on birth control and recently got it removed but even when I had it we still used condoms cause we don't want any chance of getting pregnant. Well any way every now and then we wouldn't use a condom when I had the birth control and he would cum no problem. Well the issue is when he wears a condom it is almost impossible for him to cum. All I wanna do is please my man. Please help.