Haha my mare put me through the wringer with her last foal. She was bagged and had yellow fluid at 300 days. She didn't foal until day 360.
The milk will turn a creamy white and be VERY thick and sticky - almost like the consistency of warm honey. The udder will be very full, and the teats will fill all the way in. In my mares case, her udder would always be softer in the morning, and very full at night (she was stalled at night and pastured during the day). It wasn't until the final week that her udder stayed tight and full around the clock.
As I always mention on these threads, last time around I had the best luck with testing the milk, it gave me the clearest indication of anything...and since her pregnancy drug on so long it was good to have at least one reliable indicator at the end!
Last edited by Indyhorse; 07-06-2010 at 02:39 PM.