So glad your cervix was all good, I hope you feel good about it now. I would say you are all fine to still have sex, you only need to go on pelvic rest if there is a problem or some risk outwith a normal pregnancy.
I hope I didn't scare you, I always worry about telling people some of what happened to me as I know it's a scary time already, but then again if I knew what I know now my boys may still be with me, so better to get checked out than just presume it's nothing. I always feel now it's better to ask the question and get checked properly than brush it off as nothing and maybe regret it later, I unfortnately know all about that feeling. All the very best to you, I'm so happy all is well xx