Non pregnant sim getting Labour Pains

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Often (50% - 99%)
What is your current game version number? 1.84.197.1030
What expansions, game packs, and stuff packs do you have installed? All except for StrangerVille, My Wedding Stories, Journey to Batuu No Kits and Stuff packs, Tiny Living, Cool Kitchen Stuff, Backyard, Movie Hangout, laundry day
Steps: How can we find the bug ourselves? Unsure, Before it was whenever my sim was getting hungry but now its always
What happens when the bug occurs? Sim clutches stomach and looks like shes going into labor even though shes not pregnant
What do you expect to see? Her not doing it
Have you installed any customization with the game, e.g. Custom Content or Mods? Yes
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure 

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I understand that it is most possibly a mod. I'm wondering if anyone else has experienced this.