there is one trope that I really like in melslash, which is MPREG, that I have yet to figure out how to do in f/f, because, "pregnancy i wasn't expecting and didn't think I had the body parts for," immediately leaps to the "I was roofied place," and dubious sexual consent is entirely NOT what I like about mpreg (I do sometimes like people to think about abortion, and also why are aliens/gods/macguffins so damn interested in getting other people pregnant), but the main buttons it pushes for me are body transformation + family building.

Has anyone seen somebody structure f/f impossible pregnancy fic (fpreg) which either precludes the roofied thing or addresses and disposes of it because some non-roofy thing happened instead and they found it out very fast?