[cypher]

Try not to panic to much (although I'm sure I would too!) you have time to think about homing pups & separating males & females while you wait to see if she is pregnant.
The most important thing right now is to keep a very close eye on her as a few days before she gives birth you will have to leave her completely alone & not disturb her at all until the pups leave the nest so do any cleaning that may be needed before that & as the time approaches make sure she has lots & lots of shredded toilet tissue to make a big nest & deep substrate too.
All you can do during that time is provide plenty of food & change water, no other disturbance at all.
There are threads on how to deal with accidental litters in the breeding section if you have a good browse & some of the experienced breeders here will be able to help out if you have more questions.
Good luck if she is pregnant, I hope all goes well.