I have a male that Im trying to get to mate with a female golden. She is just about to quit bleeding and he is already trying to breed. She is moving her tail to the side but he isnt penetrating. This is her first time. How many days after bleeding is she in heat and which days of the cycle are best? Ive tried this with him before with the same dog and left him with her for about 4-days and he would get on her but never did lock up with her. I was thinking it may be because there were other dogs around so this time I brought her to my house so they could be alone and maybe he would penetrate. Please give me some good info as to why he is not penetrating. Is it too early in her cycle? Is he too old? hes 9. or does it have something to do with it being her first time? Please help I want a puppy off my dog and he isnt getting any younger! Thanks!