Sex while pregnant

My fiance and I haven't had sex since we conceived. I'm currently 17 weeks and since we suffered a miscarriage early last year, we're both pretty scared to have sex. I really want us to try and have sex again because I physically miss him and I know he probably does too. Any tips on having sex while pregnant to prevent any bleeding. I know there is probably no 100% method that would prevent bleeding but I just want to take all precautions before actually trying again.