
A season will last aprox 21 days. Yes probably the messy bit will get worse up to day 12/13 then it will change to a more watery colour. Lead walks away from other dogs is a must and I think (Fingers and toes out) she will be on about day 12/13 for Windsor so right on her most flirty attractive stage so yes in my opinion a no go, however others I know show right through a season but I don't.
Depending on how it takes her be carefull she does not try to escape and go of hunting for a nice young man...I have had those who do and those who don't..Treacle would always need a leash as she was prone to leg it after any dog she saw for a little of what she most definatly fancied!!!!
Make sure she is not out in your garden unattendad as some lothario's are very clever at breaking in to get a a nice bitch!!
Oh and just as an afterthought (For those who may read this and not know) she will mate with ANY dog when her time is right, Father, Brother, Grandad etc... dogs have NO inhibitions in that respect and many an unwanted pup has been born as people thought they would not mate with a close relative!!!
Hope this helps..as regard to sprays..I find the magority of Dogs have worked out that a bitch that smells of anti-mate IS in season!!! They are not daft!!
Aileen