Merlot, the key thing you look for is change. This mare's belly has changed shape since the last set of photos, meaning her foal is moving around, and the pointyness suggests that the foal is moving into position for birthing. That typically happens anywhere from 24-48 hours before birth, but can happen minutes before, a week before, or not at all (not at all is when you get worried as it may be a breach birth or a leg could be stuck - causing major complications; luckily for OP, her mare seems to be moving baby into position just nicely).
She might get super-smoochy, or super-grumpy. She might not change at all, personality-wise. But if something CHANGES, be on high alert, because something will happen sooner rather than later.
OP, are you educated on red bag deliveries, what to look for, and what to do in the event of one? Red bags are much more common [better word is less rare] in miniatures than other breeds so although it's unlikely that you will need the knowledge, it's better to have it just in case. Red bag is just what it sounds like - instead of the white amniotic sac, the first thing that presents is red, and tough. That's the placenta, and if you see it before the foal is out, you will need to get that baby's nose and mouth clear ASAP because if the placenta has detached the foal can't get oxygen until it can breathe. Lots of people use scissors to cut a red bag, but a cut and sharpened popsicle stick will do the job nicely and has less risk of cutting the foal.
The biggest thing with red bags is that even if the foal breathes right away, it's really important to get the vet out, because a red bag foal can be weaker than a normal foal and it's better to be safe than sorry.
I don't have all the info but have read up on it because someone on another forum had a red bag birth last foaling season and because I want to get into breeding one day I wanted to have all the information.
Last edited by blue eyed pony; 10-10-2012 at 04:32 PM.