Best way to house them?

Question
Hi,
4 weeks ago I woke up to find 5 baby Piggies in the cage with what we thought were 2 female Piggies.
I immediately worked out which was the female as she had shrunk to half the size overnight and separated them.
However 2 weeks later 2 babies died so we brought them inside after another 2 days another died so I took the mother out and put her back outside.

The 2 remaining babies are now 4 weeks old and I have just read here they should have been sexed and separated by now.

So what would be the best thing to do if there is a female should I risk putting it back in with the mother who is only about 7 months old herself) and can baby boy go in with father (he is about 4 yrs old) etc?

I'm at this moment going to see if I can work out what sex Princess and Tinkerbell are!!   My vet told me that Daddy was a girl so I can't take his word for it.

Thanks in advance  

Answer
tracy,
 If you need help sexing the pups then go to the link at the bottom. The girl(s) can go with the mom. The boy(s) can go with dad. If there are any males they should be separated from mom as soon as you can. Yuor piggies sound happy and healthy!
http://cavyspirit.com/sexing.htm