I hope this is the right place to post this but the whole menstruation and pregnancy system needs a re-work, i think. Going 30+ days without getting periods, having to use cheats to cause them, periods not stopping after having started using cheats, etc are just some bugs encountered so far. Over 150 days into the game, so have made a lot of progress! Can't risk losing it all by starting a new playthrough!
Also in another instance, the additional description window kept on giving hints like your period is late by 'x' number of days and your abdomen hurts. Did pregnancy test almost every day for 5 days with it showing not pregnant, Went to the clinic and tried to take a birth control shot. Surprise surprise, the mc is pregnant! Came back home and the tests NOW started to show the mc was pregnant. The whole system is rather confusing.
If these are bugs, please look into it devs. If these aren't bugs, any and all help will be much appreciated!