Billy** has a point re a new boar and weight. As I said it could be familiarity, so my suggestion is something to try to start with. Weight can be a problem; it is not a good idea to try to put an overweight female into pig because it could be dangerous for her health wise, and it could be a cause for not taking. Her age could also be a factor - 15 months is getting to the boarder age for a first time mum. A year would be ideal. A few things to consider, but take it one step at a time - process of illimination.
If your other gilt has not come into season again, it is a fare bet that she has taken, but time will tell on that score as well. Three months, three weeks, three days. You should start to see some changes around eight/nine weeks - three seasons missed. She should start to fill out a little by then.
As before, I hope it works out for you.
Kate
