Period

When did you get it and what was the first one like??

I stopped bleeding 2 weeks pp and had horrible cramps at 3 weeks and then started bleeding (i know it seems early but I’m 99% sure it’s my period as I’ve had no cramping whilst pp bleeding and do now like really bad period pains) I was really heavy the first day now I’m day 2 and the bleeding is hardly there if any and im still having really bad cramps, is it normal for the first period to be off like this??