Has anyone dealt with this condition? My female, who has never been bred, has been in her cycle for about 13 or 14 days now. We have had a few progesterone tests with the last two remaining at .55. the vet thinks it could be a split heat because her number isn't rising as it would normally. She has been spotting without much change for the entire time. Any clear signs that this could be going on? I have had 4 tests and I am not sure if I should have a 5th. Any advice is welcome.