Cambridge University Autism Research Centre has found that compared to women who do not have polycystic ovary syndrome, women who do have this have about double the risk of having a child with autism. The risk was slightly higher in male children compared to female children.
Cherskov A et al. Polycystic ovary syndrome and autism: At test of the prenatal sex steroid theory. Transl Psychiatry. Aug 1 2018. doi:10.1038/s41398-018-01867.