Chances of a false positive?

Took two test earlier this evening, and both came out positive! I’m so happy, but so afraid to believe I’m actually pregnant. We have been ttc for just shy of a year. The tests were so quick to read though, and the lines are so dark! I’ve had irregular periods since I got off the depo last October, and am “expecting” my period here in four days. My last period started August 11th, and my cycle length averages out to 48 days per my period tracker app.

Am I really pregnant? Could this be a false positive??