Help! :(

Ok ladies last night I had a heap of bright red blood that came for about 5 mins (after having sexual intercourse) and then went light pink and is still light pink now (only when I wipe) I've had no cramps and feel otherwise quite good! I'm currently 7 weeks pregnant and with my first pregnancy I had a lot of heavy bleeding after intercourse and my son is now 15 months old! Doctors won't do an ultrasound till 10 weeks to see if baby is ok! Has anyone else had this and what was the outcome? Hoping my baby is ok!