Condom sizing…

<3

Hey girls. I find that my boyfriends condoms fit a bit baggy on him and they seem to shrivel and may even slip of during sex. If I were older wanting kids this wouldn’t be an issue. But I am on birth control but I also want to take extra precautions to make sure everything is safe. Id feel so horrible telling my boyfriend “i think you need a smaller size” but it has to be safe for me too. What should I do?