In the northern hemisphere, babies are most likely to be conceived in winter and least likely to be conceived in spring, according to an analysis of 14,000 women
Source:
https://www.newscientist.com/article/2233515-babies-are-more-likely-to-be-conceived-in-autumn-but-we-dont-know-why/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home