I took HPT on day of my expected period (02-01-16) and BFN

Katie • High school sweethearts! We have been together since 10.19.07 (Married since 10.19.13).We have 1 Angel baby❤ March2016. 1 Girl 02.07.17, 1 Boy 05.18.18, & Girl 04.07.22
I took hpt on day of my expected period (02-01-16) and BFN. I retested 7 days late (02-07-16) and got 3 BFP! I have so many emotions right now! We were TTC for 3 months.