why me?!?

So I'm trying to figure this out cause it's been awhile since I've done this. I was off the pill for 2 months and started back this month. I am now on my 15th day of my period and it has been heavier (not super heavy but still) the last couple days than when it started and I'm getting cramps too. I know they say starting the pill the hormones can change stuff but I'm starting to wonder if this is normal. I've taken the pill before and stopped for 2 years and started back and didn't have trouble like this. I've never in my life bled for this long. Is something wrong? I want opinions before I call the doctor cause I don't want to be the idiot who calls when it's totally normal or something. Anyone else ever go through this?