Feeling worried? HEEELLP

So I’ve been having cooper IUD for the last 4 years. My period is always regular/normal until this month. My last period was on 6/1 then on the 14th I got it again?? After 14 days I started to bleed again out of nowhere it doesn’t seem to stop. Normally my period last 2 days only and today it’s my 4th day bleeding. Unfortunately it’s Sunday and I can’t find a clinic open I’m starting to get worried 😧 should I go to the hospital?! Does anyone experience the same?