Light AF? But then got BFP?

AF showed up on time but it’s really light, almost non existent since Sunday, first day of my period. I don’t even need to wear a pad or tampon for the last two days. This AM it was brown, not even red. My normal periods are usually short but heavier.

I was honestly really surprised when I got AF since I was convinced this was our month...nasal congestion, canker sores, breast tenderness, nausea, cramping since ovulation, irritable and tearful mood.

Should I test or let it go and focus on this month?