Spotting but no period 😔

Ashlee • Little Miss Mini Me coming September '19

My depo was due October 9, which I know it's still pretty early to start getting discouraged but my husband and I started seriously talking about TTC in August and started actively trying (or..practicing I guess, since I still had the shot in my system...) in the middle of September. On the 7th I had light pink spotting, nothing on the 8th, and on the 9th it was dark brown. Logically, I know I'm not, but I want to take a pregnancy test just to get that little glimmer of naive hope that I'm not having a full period because I somehow miraculously conceived out of my head. I'm thinking about buying one from the dollar store, but what if seeing the BFN just makes me more discouraged or it feeds that glimmer of hope and starts an unhealthy cycle of constantly testing? Literally every time I pull a panty liner out of the bathroom cabinet my husband is like "is iT HERE?!" and his entire face brightens, and I feel like I'm disappointing him when I say no, or that I don't think so. All I want is to see a regular period, or at least the irregular but still somewhat predictable periods I used to see before I started the shots.