I am new to owning mares- have mainly had geldings for YEARS. My shetland mare had been running with a stallion since Jan 2 and breeder whom I bought her off said she is pretty sure she is in foal as she hasn't come back into season. I got her this morning and was brushing her this arvo. Her vulva looks as though there is a thickish discharge sort of sticking to her tail a little bit seeping out. She isn't near any other horses and I haven't seen her squirtint. It's kind of creamy and looks as though there may be some blood in it... I am guessing this is her in season? Anyone who can advise anything is appreciated. I have also mentioned this to the previous owner.