Earliest positive pregnancy test

Anais
I'm just curious about when you ladies got you BFP! My cousin can test a week before her missed period and get a BFP... While my sister in law has had negative pregnancy tests until she's 5 days past her missed period (with all three kids!) I understand that this is hormonal, but I'm interested to hear when you all got your BFPS! Please share with me how early or late you got it!