One of my female swordtails in my 38g is getting a little fat and i can see the fry's eyes in her belly now, shes not extremely bloated and the fry are not yet at her vent hole. I have a little 5 gal. cycled and all to raise the fry in till theyre big enough for the other fish.
My concern is the amount of stress she will be in through this whole process, i dont want to move her into the 5g too early, and have her away from the other swordtails for too long, and as soon as she gives birth I want to move her back to the 38.

Any insight into when she may give birth? Or is it not a problem for her to be alone from her other tankmates till she births? Any help would be greatly appreciated, thanks