Help am I miscarrying

melody

9 weeks pregnant, I have woken with dark dark brown discharge, it’s not leaking onto a pad though its just there when I wipe? I have rang midwife and she has said wait a few hours to see if it’s gets worse and she will send me for a scan if it does! I have no other symptoms like cramps etc just the discharge, has anyone had dark brown discharge and had a normal pregnancy help 😓 I did have sexual intercouse last night could that be the problem?