pregnant?

i came to visit my mom this weekend, and she has been talking nonstop about her new guppy tank (i brought her some nails for her algae) but i noticed this guys (maybe girls???) belly is bigger than the others. is (she???) pregnant?? if so what should she do? she has a couple shrimp in as well as a few more guppies, if it had fry is it okay to just let them eat them? 😭