Honestly, if you're bleeding, I wouldn't wait until your next appointment.
Anytime I see blood, I call, and if I feel it's necessary I go to the hospital.
(I had bleeding around 23 weeks due to sex [they think] but I didn' tthink that to be the cause haha)
I went to the ER last night and they took all the tests, Turns out I'm 6 wks! and I have a UTI, I'm on bed rest and pelvic rest. I'm nervous but I'm praying everything will be okay. One thing is they didn't here a heart beat, but they said not to worry it could be because its way to early.