First of all, I do not understand what your resistance to reproduction is, but I do not want to argue.
Second, I have nowhere to move it!
Like you said, she is probably pregnant, but she will not be able to get pregnant again because the male will be neutered!
Third, unfortunately you are wrong. The vet told me that after the castration they should be separated for 48 hours and that's it!
I don't know what castration is common in the UK, in Israel it is not like that.
It’s not a case of not understanding your situation. I really feel you’ve taken on more than you can handle here.
I’m sorry, but we are absolutely not wrong - There is no difference between Israel and uk In guinea pig reproduction. Neutered guinea pigs remain fertile for six weeks after neutering.
You are going to need more cages anyway because your cage is not big enough for two guinea pigs, let alone when babies come along. Plus at a certain stage Male babies need to be separated from their mothers and sisters, so you will need even more cages.