I have a 1 year old staffy who came in season 11 days ago I've kept her in the house all the time and made sure the big gate is shut when she goes out side but today I went out side and there was a dalmatian in the garden I don't no how the dog got in or how long it was there or even if it got on her but I don't want to take the chance of my puppie been pregnant so is there a morning after pill that I could get for her I have looked at her and there was more blood on it than usual

There isn't one I know of - seek a local vets advice. And dogs will go to extreme lengths for a on heat!