My 3 year old Cocker Spaniel (Bella) was in heat at the end of febuary. I have talked to my vet and she said on the 11th day have her get fertilized. We brought over my friends dog on the 11th day which was yesterday. Everything went fine. He mounted her like at least 5 times. We are not sure if he was finished giving her everything she needed. He kept wanting to mount her,after his erection has decreased back to normal sized. but my dog did not want nothing more of him and they were running around the pool, with the guy following her by the tail. What I want to know is if anyone could give me any ideas on that dog at least fertilizing her because im not sure. I am looking forward for these pups.