What is going on?

So due to breastfeeding I just got my cycle back so glow doesn’t know how to deal with that I guess. I didn’t track anything so we just bd a lot. Glow said I was supposed to start the 1st and I have been cramping so okay I could agree but I decided I’d test that morning anyways. Huge negative. Today I expected my period to come even thought it was starting a few times tonight, and nothing! I am also weaning my son so what is going on? Here is my cycle so far, also I had some pink spotting on the 25th so I’m very confused by that.