So when we found out mum was pregnant with first litter. Mum and dad were separated instantly. A week later she had the litter. The babies are now 10 weeks old. We noticed mum made a nest two days ago. Which we thought was a phantom, as it would be impossible for her to pregnant as we followed all advice. Dad had his balls done, and we kept them apart for the 6 weeks as advised by the vet (plus another week to be safe). However today I saw things moving in her tummy and I felt something move. We kept babies as advised everywhere with mum till just before 8 weeks as she stopped wanting to feed them. They were then separated and mum was back with dad. Can some explain how this is possible ? I’m a bit stressed