Sex while pregnant TMI topic

What do you ladies think of sex while pregnant. Do you do it less often, differently? Are you more cautious or you just go for it? I am 9 weeks now and hubby and I haven't had sex since conception πŸ™ˆ he wants to, I want to but I am just so nervous. Please pardon my ignorance but this is my first pregnancy. Is there less "room" in there now? Like should he not go as deep? Should it be very gentle or it doesn't matter? Should he wear a condom for cleanliness or does it even matter? I keep reading about woman cramping or bleeding after dtd and I'm just so nervous. At the same time I don't think we can go 9 months without πŸ˜‚
Any advice would be so super helpful!! I don't normally talk about such private matters so you ladies are my only help. :)