Help!!??

I’ve been taking the pill now for several years. About 2 years ago I was changed to the pill ‘yasmin’ 21 days on the pill and a break on the break you have a period, haven’t had a problem with it until last month when I had 2 periods one during taking the pill and one on my break very heavy whilst I was still taking the pill but had no pains like I normally do. This month I am currently having a heavy period and I’m two weeks into taking my pill. It’s been going on for a week and a half now. Typical but I spoke to mum and she said don’t worry but it’s super painful and has been for a week and half.

What do I do? Any ideas what might be happening??