Can't take pregnancy test

So my sims are definitely pregnant i can see them showing signs and they eventually figure it out but i am unable to take a pregnancy test my game is up to date and i already tested around with mods i have its not them and another person i know with the game tested and had the same thing occur without some more 18 plus mods they are unable to check to see if they are pregnant in fact the open doesn't even appear in the pie menu for the toilet but throw up does which appears when sims are pregnant for me at least