Cramps + period

Hey so I started a new pill last month. Haven't had the pill in a long time. 
And I started getting cramps a week or two before just a little nothing bad. 
Then Friday I got my period and the cramps hit big time I was in bed all weekend and now it's still a little sore and pretty heavy still. 
Is that normal after starting a new pill? I'm just on day 2 of my second pack. And still have my period.