Well what size tank is she in now? I wouldn't jump on it yet. Stringy white poop usually means parasites not
eggs. Just because it's a female doesn't mean that they can't get parasites. I'll give you a link when one of my fish had parasites (sadly he passed away). But it gives all of the information that people gave me.
I also have pictures of the poop. Like Kelly said in that post: "A one-time stringy poop can simply be an irritated digestive tract overproducing mucus but if you see this a few more times it's internal parasites. Jungle Parasite Clear used in conjunction with Jungle's anti-parasitic food should clear it up." So that's why I said don't jump on it now because it could be an irritated digestive tract. So just keep an eye on her poop.