When my sim first accidentally got pregnant through a regular woohoo, I looked up how to terminate a pregnancy, and used the cheat given. I typed in what it said which was "testingcheats on" and then "sims.remove_all_buffs" And then I saved and went to "Manage Worlds" and selected the household again. The cheat worked and she was no longer pregnant. Than later, she hadn't woohooed since I'd cancelled out the first pregnancy, so I know she hadn't gotten pregnant again from another woohoo and found out the next day instead of through a pregnancy test. She hadn't woohooed for several days, and she didn't get sick or anything, and there wasn't even a notice saying she was expecting. Just randomly, in the middle of the day, the bump appeared and on her emotion/feelings thing, it said she was happy because she was expecting. Maybe the cheat didn't work or the game glitched or something. I cancelled that pregnancy, but then the same thing happened, so I cancelled out that pregnancy, too. Eventually it came back again, so I just had her have the baby and aged up the kid and have it live with a different sim by using "Manage Households". Thanks anyway!