I wanted to know what day i should start breeding my female. I have looked through out the internet and found several different days they should mate like day 9, 13, 16??? I also heard you should wait till the bleeding stops. Last time she was in heat she bled for over 2 weeks. I'm so confused. I payed a stud fee 6 months ago and my yorking didnt get pregnant even though they got stuck 3 times. she is in heat again and I want to make sure I didnt pass my window of opportunity again.