Sorry for typos as my eyesight is not the best and spellchecker on my phone keeps changing words.
Here is a more recent journal article
Prenatal Progestin Exposure Is Associated With Autism Spectrum Disorders
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6252360/#!po=0.617284
Progestin and estrogen levels vary significantly during the menstrual cycle. They work together to prepare the womb for pregnancy.