Probably overthinking but...

So I’m 21 years old and I’ve always had very regular, very light periods. My periods normally don’t last any more than 4 days. Well currently, I’m on day 10 of my period and it’s not showing any signs of slacking up. I’ve already gone through 2 boxes of tampons when normally half a box will be enough for one period. I’m mostly concerned because a week or two before I started I had HORRIBLE pain around my ovaries. Like so bad I couldn’t move or eat. I’ve had pain there before but nothing this bad. I’ve been on the same birth control pill for almost a year so I wouldn’t think it would be causing this. I just need advice on whether or not I should head to the doctor or possibly wait until my next period?