Period and Contraception issues, HELP!

🖤💜❤️

So I started back on the mini pill 6 weeks or so ago for a medication I’m taking for my acne.

I came on my period when I was due(which I shouldn’t do as this pill is supposed to stop periods)

I came off last week, but I then came back on my period a few days ago and it’s quite heavy, I’m going through super tampons within a couple of hours and passing clots!

Is this normal or should I ring my GP!?