Is there a way to increase odds of science baby twins/triplets?

Title. I know the on ley line lot trait and fertile trait increase odds of multiples from a regular pregnancy, but my sims are lesbians and I want them to have science babies (possibly using lumpinou's science baby pregnancy mod?) and I know IVF babies are more likely to be multiples irl, so I'd like to try and recreate that if I can.