I have a 3 year old female GSP that we have been planning to breed for several months. On Monday she began to swell in her vulva. We have not seen any blood yet. She has never bleed very much in her other heat cycles, but usually has some bloody discharge by day 4. Should I be concerned, or is no discharge ok? Do I start counting days when the blood appears or when I see the swelling? I have been keeping a close eye on her as we have been waiting for this spring heat cycle. I am planning to have her at the stud owners by Saturday which will be day 6 if I start counting on the day I first noticed the swelling. Thanks for any imput!