Zsa Zsa went into heat recently, started showing color July 30th. She is on day 18 and still having occasional spotting of red blood, I expected to see a brownish tinge at this point but not red. Should I be concerned? She seems to be feeling fine. She is flagging when you scratch her back still too, thought that would be over by now too.

I'm ready for this to be over and can't wait to get her spayed!