Sex too early after bladder sling surgery help?

Patient: I had a bladder sling operation nov1st due to bladder leaking from having big babies. Operation was successfull and dr said no sex for four husband and i didnt make it that long and had sex twice november 6th. Im nervous that i might have caused damage to the surgery a little bit. Anything i should watch for? What shiuld i expect? Is it bad we had sex? What know. Im not in anny pain and wasnt in any pain during or after sex.