The answer to all of those is potentially yes. Odds are not all of your girls have gone into heat while he has been in with them so he may not have caught them, but you will need to place them all under pregnancy watch. Of course you will need to have him in a completely separate cage so he can not get back in with them again, you may also need to discuss this with your kids so they understand they also can not put him back with the girls. Yes that is boar glue.