Help?

So I do have an irregular ish period that can range from 30-35 days in between cycles, but at the moment I am 5 days late and yes my husband and I have had unprotected sex, but I took a pregnancy test a few days ago and it was negative. Since the day my period “should” have started I have been having this heavy clear jelly discharge coming out and I have no idea why. Anyone else know what may be going on?