Need help on cramping

Below are screen shot of my period trackers (I use 2) well I just had some cramping it only lasted for a little while then disappeared I hardly ever get cramps with my period and on the 12th it was my first real period in 17 months since I had my daughter (breastfeeding) has anyone experienced this or could possibly have an idea of what it is? I’m not TTC but we are not stopping it from happening.