Late and light period

Hello 😊 I’ve been concerned recently because I was 6 days late on my period, and yesterday afternoon I started spotting. The rest of the night it was varying in intensity, sometimes not even showing up when I wipe, but at its heaviest, it was still just spotting. Today its been fairly consistent, either red or brown mucous-like blood. It’s still fairly light though, only a little heavier than yesterday. I’m worried that, although I never had actual PiV intercourse, I could’ve somehow wound up pregnant from some forms of foreplay/outercourse (i.e. fully clothed dry humping if my partner’s cum showed up in a spot on his pants). I’m pretty irregular, but this is unusual for me. Any input?