Confused&nervous

I had my period on 2/16-2/22... okay me and my husband had sex on the 2/24&2/25 now on the 2/26 I'm bleeding bright red blood heavy flow and I done went thru 3 pads. Yes I been drinking but that was Saturday night. Now it's Sunday why am I doing this? Do need to go to the hospital? This the 1st time this ever happen and Me and my husband been trying to have baby for 3 yrs going on 4 but no luck . (Feed back is welcome)