I've never used those so I'm really not sure. Are those from pregnancytests.com or w.e? I was going to buy a "kit" that came with 20 free tests that looked like those and I read alot of people say that they got false positives. I'm not saying this is the case but just be careful. Can u get ur hands on a frer or something to confirm with? Frer can pick up levels of less than 10. Also how long did it take for that line to appear like that? It does look like the line is a tiny bit lower like evaps usually appear but as I said, I'm nit familiar with this particular brand first hand.
FX VERY TIGHT THAT ITS NOT AN EVAP! I truly hope its ur bfp, id just def confirm with a dif brand before gettin too excited. GL!