This might be a totally stupid question but I couldn't find the answer on the web and all the other comments are from yesterday. But are conditions in the womb

This might be a totally stupid question but I couldn't find the answer on the web and all the other comments are from yesterday. But are conditions in the womb acidic? I'm just wondering, that if DNA works at all like computer code, then maybe cells have programming to work a certain way in certain conditions and maybe it's not so much that a cell undergoes a permanent change when it matures but that the old programming just doesn't run anymore?