husband wants to have sex everyday

sorry if it sounds too vulgar, but this is what I've experienced. Hopefully, someone can respond... Since I got pregnant, for some reason, my husband seems to be more aroused. He always wants to have sex almost every day. I've said, "Maybe not every day... I'm worried something might happen to our baby," but he always says it'll be slow, and he also wants to make the most of the time before I can't anymore (meaning after childbirth, I'll definitely need to recover and focus on taking care of the child for a while). I had a little bleeding once, and we went straight to the hospital. The doctor suggested reducing the frequency of having sex. It was reduced for a while, but a week later, it happened again... I'm confused about how to handle it. He seems a bit selfish... but on the other hand, I understand he needs it. What should I do, parents?