Late but I have had normal cycles for 1.5 years...100lbs lost in 2 years

Bethany
I had a mc in 4/10/15 and this is my 3rd cycle since 1st-31 2nd-32 3rd-currently cd37
Depending on the app I'm 3-5 days late 
Monday was bfn so waiting til the weekend to test again
Has this ever happened to anyone and turned out to be pregnant?