Cinnamon sticks?

This is one of those weird questions about things that bring on labor , recently was told to not use cinnamon (sticks) as it can bring on labor I googled it and apparently they are recommended quite a bit from midwives 😣 does anyone know how much is too much? I read 2 cups as enough 😖 I wanted to make arroz con leche and I use quite a bit so do I lay off? Is there other foods or drinks I'm supposed to be avoiding too? I'm high risk now this is all new with my first I never knew any of this 😣