Homemade pregnancy tests

De
So I am writing a blog for an English class and have decided to write about  parenting my children and the crazy roller coaster of trying to create another tiny human... This week I want to write about homemade pregnancy tests. Have you ever heard of any strange DIY tests??? 
​Example: Mix your urine with bleach... If it fizzes and foams you are supposedly pregnant... 
​Another one is with toothpaste!!! 
​Please add any home tests you have heard of so I can add them to my research list..  :) 
​thanks ladies!!!!