Pregnant or not?

Question
I have a 14 yr. old mare that has been in the same area with a 3 yr. old stallion.I saw him trying to breed her around last April if she were pregnant should I be able to tell because she is naturally a large framed horse but her belly doesn't look round yet.I also barely sqeezed one of her teats and a clearish white liquid sprayed out.How can I tell for sure?

Answer
Dear Charity,
            It seems that your mare is pregnant. The only time horses (Or people) Produce milk or anything from there teats are when they are pregnant. If you really want a 100% answer call a vet out, but it definatly seems that she is.
Michelyn