Why did my period start over?

Brittnee • Mama to two boxer pups, three angel babies, and my perfect rainbow baby boy born 8-4-21🌈💙

I posted this in the period talk group but I wanted everyone’s opinion on it here as well because im ttc and I wondered if it could be related in any way - ps. I’m 21 with regular cycles and have been ttc for 11 months now