Also, if she has a parasite, then you definitely don't want her passing it to the male. You should always have a quarantine period for at least 1 month, but preferable 3 months - and always by themselves so you can watch for individual signs of sickness.
How much does she weigh? If she's as skinny as you're describing her, she shouldn't be in with the male at all. Females need to be at least 50 grams before breeding - that way, breeding isn't quite so much of a stress.
Definitely Separate them and take her to vet with a fecal sample. Ask them to run a fecal test for parasites/worms. It normally costs about $20-30.
If you got her from Petsmart/Petco... Well, I'd bet she's not healthy. And I'd be really surprised he were completely healthy.
~~Dusty Windom
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So Many Alleles, So Little Time...! 


@
~~The Gecko Barn~~