elder pregnant with no babies for everyone mod??

So I Have never had this problem until now.. I just got the get to work expansion and have the outdoor retreat but I was having my elder female and male Sims woohoo cause I wanted to kill them off ...(I know terrible),  the female got pregnant and then after she had the kid I noticed the male was pregnant too! so I though he had gotten abducted or something but,  was still thinking what the heck hes an elder!!! when he had the kid it wasn't and alien baby..  the only mods having to do with pregnancy I have are the pregnancy scan,  the once where you can go straight to labor or 1-3rd trimester never had the babies for everyone... even looked for it in my mods folder and it isn't there, I've even looked online for any other mod that would do this and I cant find one ....(maybe I'm just blind?),  So any help would be appreciated cause I don't want my elders to have babies :<