Guiena pigs when can father meet babys?

Hello, My guinea pig Oreo has recently given birth to two healthy babies name Rolo and Biscuit i was wondering when i could possibly but the father Cookie in with them again?? as i separated mother and father as advisised 2-3 weeks before birth, Will it be ok to put them all together? hes been castrated and missing his best friend ,
   
Many Thanks
   
Fi

I just found this...
   
Below is a link to a UK guinea pig society, with lots of information.
   
I don't know about guinea pigs, myself, but that site can help you.
   
View External Link

If the male has been castrated then there was no need to seperate them. Most sites recommend removing the father as he will mate with the mother only hours after the birth, which would result in the female being over breed and he could accidentally trample the babies in the process.
   
Since the father has been seperated, slowly introduce them back together. Try him with solely the mother first and see how she reacts to him, then add the babies and keep monitoring the situation as she may become aggrevated or he may see the babies as a threat.
   
Take it slow and keep us informed.
   
The Guys