Congrats on getting through to transfer - hope you've got a sticky one there!
I know too well the pain of a tricky cervix and I'm sorry you had such a traumatic transfer The blood will be from your cervix being scratched yesterday, and should clear up soon.
When I got my bfp my only symptom was af type cramps starting the day before my bt which continued strongly for 3 or 4 days an then on and off for the next few weeks.

Good luck!