You know, after reading the previous post I was also reminded of Carbons notes from last year. She did everything Bonny is or has done and looked the same. She was not pregnant, she elongated, she pushed against the wall, she had the same bag and , one day she lay down, pushed, looked behind herself and called to a non existant foal and then everything started reversing. vulva and anus went back to normal, gluteal muscles tightened again, bag receded and no more fluid. I even had people tell me that they saw the foal move back! there was only a phantom foal. A mare at 6 months gestation would not look like Bonny unless she was about to abort. They dont look any different than open mares maybe a bit heavier at 6 months.
I have had two mares have false pregnancies that even fooled my vet who said they would deliver in a couple weeks. No baby from either one.
I hope that I am wrong here.
Lyn