Hi just had bitch mated a couple of weeks ago,and ever since she is humping the other bitch we have. She is now out of season and hopefully in whelp. Is this normal? we had her mated before and she missed but hadn't this problem last time
It could be just a silly habit that she's got into.
I honestly try to make as little fuss about it as possible. If it gets really tedious, I use distraction techniques, rather than make a big deal out of it.
Humping isn't just a reproduction thing, it can be done as a dominance thing too, the female who may be pregnant letting the other one know she is top dog.
One of my females humps my male and hangs on like a bareback rider as he runs around trying to shake her off, very funny to watch.