Scared to have sex

So the last few times my husband and I had sex I spotted and the last time there were tiny red clots. I’m on progesterone and I contacted my OB, he said that’s normal but to wait until the 1st trimester is over to be safe. I’m about 9 weeks now but I’m scared for the bleeding to happen again after 12 weeks. I’ve heard of some people not being able to have sex at all throughout their pregnancy. Any tips or advice?