🚨🚨 Need Advice 🚨🚨

So

I don’t know what the heck is happening! I’ve been getting my period for 17 years now and it has always been 5 days long. We have been TTC for 4 months (as of August) and the only thing we did different was started using preseed. (Did not get pregnant) now all of a sudden my period WILL NOT STOP. The first few days were so heavy and now it’s light/spotting for days on end. I have called my doctor but they can’t see me until Tuesday