Can I still

So I’m 28 weeks, I tested positive for fFN. I’m 1cm and 50% effaced but my cervix is measuring at 3.4. Anyways my doctor said I’m not on bed rest but to take it easy. Does this mean I can still have sex? She never said anything about not having sex. Please don’t judge, I know it can be risk premature labo4. I have 2 others that are preemies. I’m not saying I will do anything but I’m just wondering as if I need to stay away or not..