It was not red/pink and not brown... (TMI)
I called re and they increased my estrogen patch and said to lay around...
Said it could be that my cervix got irritated by the u/s.
I hate this..... I've even had it before and I'm still a nervous wreck! Of course it's the weekend! Everything happens over the weekend!
Don't know whether you followed my saga last weekend, but I had heavy dark brown spotting, with some light pink mixed in there. I'm glad you got in touch with your RE and didn't have to go the ER route (which threw me into a complete tailspin).
Is your RE open over the weekend, in case you want to go in?
I was advised to sit around as well - and drink lots of water.
Hang in there, hun.