My game had been running for quite some time, and I was a bit surprised nobody had gotten pregnant recently. I shut down the game and computer when I went to bed last night for a windows update. Today, a lot of my female sims are vomiting and have odd food wishes. I recognize these signs. I've had this glitch before. All the pregnancies that didn't happen kick-in before the restart are kicking in now. I think I have three or four pregnancies at the same time. In a previous glitch, I had seven (yes 7) babies on the same day. My nursery has two cribs and a swing. The same nursery layout I had for the seven babies. That was crazy. Three or four will be no problem.
Update:
Yup. Just before midnight, four sims climbed out of bed and rubbed their bellies. Oh, the one that became a teen the previous evening, invited her best friend over for a birthday party; his. Before he could get a girlfriend and a part-time job, she put the moves on him and proposed going steady. Once that was settled, my attention drifted elsewhere. She's vomiting now. It looks like my 3 baby nursery will have 5 new inhabitants.