Belldotty if it's not successful, do know that if you learn how to do your own vaginal cytology you will be able to tell if a bitch is 1) in season and then, within her season, whether she is 2) in pre-estrus, estrus or diestrus. Ovulation occurs during estrus. Whilst cytology doesn't tell us exactly when ovulation is, it does tell us when estrus is - so it tells us a lot more about where we are in the cycle than just watching any discharge does. Once you know a bitch is in estrus via cytology, you can either guess where to place your breedings within that frame or you can do progesterone during estrus.