PCOS worry?

S
My cycle has been a little off and I can't get in to see my Dr for a little bit so I'm hoping someone can help and tell me if this could be PCOS
My symptoms are:
1. Sudden irregular period
2. Spotting more than not
3. Can't lose weight
4. Depressed 
I'd like to explain more of 1 and 2. I missed a period in April and my period in May was unusually lite. June's period was 10days long (normally only 5) and was super heavy with abnormally large clots. In between my May period to now I've had spotting non stop. Only 10 days since May without some sort of bleeding. 
Can birth control help with these issues? Could this be PCOS?