+1 AFAIK fish aren't considered pregnant. They are either holding or gravid. Gravid, you can feed. If holding, then they won't eat until they spit. If I separate a holding female I only do it the last week or so. If after post spit/strip and they are in a separated area, I'll feed them a few days and then re-introduce into the main tank. I prefer to leave holding females in the main tank and then catch and strip and put them back in. That way they aren't "strangers".