Please don't put the female in it. It really stresses them out if you do that, possibly to the point where she just reabsorbs the fry and doesn't deliver any. If you put lots of plants in the tank she's in now, the fry will have a good chance, at least some of them, of surviving. Then you can either take them out of the main tank and put them in their own tank or let them fend for themselves.
Unless you're starting a guppy ranch, I'd suggest the latter. Otherwise you'll honestly have more guppies than you'll know what to do with.