Confused

So I’ve been spotting for two days now, not sure why. My period ended a week and a few days ago. This app estimated that I ovulate on the 24th but I don’t know for sure because I haven’t done an ovulation test (I don’t really plan on it either, we not trying to get pregnant, were also not trying to avoid it. If it happens it happens). I took a pregnancy test today for the hell of it and got a faint line. I don’t know what to think about this I’m super confused. Someone explain this nonsense to me 😩