Hi. Yes she’s pregnant but I’d guess she has at least a week to go. Her instinct at the time will be to hide (in the bushes) so if you’re putting her in a breeding box, in full view, she’ll be stressed which can lead to problems.
But the females will probably be stressed anyway by the males. With livebearers you should always have more females than males.
But the females will probably be stressed anyway by the males. With livebearers you should always have more females than males.