What is going on?

Bailey

4 months pp with my 2nd, bled on and off for about the first 4 weeks after and then went 40 days with nothing. Got my period, 10 days long, normal amount of bleeding just longer than usual. Went another 9 weeks without bleeding, got AF which was terrible, cramps and intense clotting/bleeding. My period is now 11 days late and I’m testing negative. Anyone experience a plus in cycle days after baby? It just seems like and unusually long time in between periods.

ETA: I had some SUPER light spotting (bright red and only when wiping) at cycle days 18,19 & 22. I was also having unprotected send the whole time since about 3 weeks pp.