Faint lines to BFP digital

I'm 29 yrs old, have been married for three years and we just started TTC baby #1. I thought it would take a couple cycles since I've been on Depo forever and I'm still irregular, but I stocked up on some FRER tests. 
​I took one last Monday, BFN. Then on Thursday when AF was due, there was a faint line. I figured I would get some digital clear blue and on Fri, BFN. My boobs have been aching like before AF, and I forced myself to wait until this am, but I got a BFP! I'm really excited! I just wanted to post because there is a lot of stress around these faint lines ( myself incl).