Pregnancy superstitions.

So I’m sure we’ve all heard of pregnancy superstitions and I was just wondering how many of them turned out to be true? So for example a child within the family like a cousins kid or a young niece or nephew has looked between their legs or a child got a stye eye and it means someone in the family is pregnant. It has happened multiple times in our family and it always turned out that someone was indeed pregnant. So what other crazy superstitions have you guys heard of that turned out to be true? I know so many different cultures have their own unique superstitions. Thanks!