Just 1 clot

So I had a period January 15th til the 21st and then on January 28th, I started lightly bleeding/heavy spotting (if that's a thing) not enough to fill a pad or anything, lasted a night. Then the 29th I passed just this 1 clot when I wiped. No blood came with it.. Now today- the 30th, I am having light brown blood when I wipe.

What is going on?! 😩😩😩

*Let me add- my cycles are verryyy irregular and January 15th was my first cycle since I miscarried in October. & yesss i put it on a paper plate to look, dont judge 😂😂😂