I have a pregnant mare and I was wondering what the signs just before delivery?

Udder development 2 to 6 weeks before foaling,
Milk let down in teats 4 to 6 days before foaling,
Waxing a cover over teats from colestrium leaking 1 to 2 days before foaling.
If colestriom leaks a lot try to collect it for foal.
Contractions will normally accure 1 to 4 hours before delivery
The mare will appear nervious, pace in stall, frequentlly urinating,sweating in flanks
Flicking tail, getting up and down.