I'm new to guinea pig ownership and just learned that while I was told I was purchasing two females, one of guineas is actually male. The two were in the same cage for 10 days before I found this out and removed the male from the cage. They are about 9 weeks old. How likely is it that my female guinea is pregnant? (The male used to sniff the female quite a bit but when I was around I only noticed her running away...no mounting...but still...yikes!)