>-i don't see how we could have missed with trying every day from day 6.
I don't see your argument, having had a bitch who ovulated on day 4. The bitch flagging is not a reliable signal for you. I have a bitch who flags from day 3 and doesn't care who or what it is. She would flag to a camel given half a chance.
I am horrified that you have been "trying every day" that is so wrong. Why aren't you progesterone testing?
Do you have a mentor? (Usually your bitches breeder.)