Sex after frozen embryo transfer

I had my FET 07/24 and am now 6 weeks pregnant! On the paperwork my RE gave me it said to avoid intercourse, stimulated orgasms and avoid putting anything in the vagina until the fetal heartbeat is heard. My question for you ladies who have been through this is, if you did have sex or an orgasm before the fetal heart beat is heard, did it harm your pregnancy? TIA!