Pains!

Wondering if anyone can help!
I'm on the pill and have been for a few years and recently I have been experiencing some pain mainly on the left side like just below my hip bone?
I'm assuming that's where your ovaries are on each side?
Also I'm getting back pain like on my 7 day pill break but throughout my 21 days on my pill?
Is this anything to worry about?
The pain is just like a dull pain!
Help!