PLEASE HELP!!

So I’m 16/17dpo according to glow.... I’m four days late, cramping on and off so assuming af is on her way and nothing. Had spotting/ pink brown cm on 10dpo but no really bleeding or af and since then loads of Cm!! this morning I felt something coming down (TMI sorry) and it was a huge huuuuge clump of clear jelly cm?? WTF?

My back is sore, breast shooting pains, knackered, peeing lots but All tests are negative... WHAT THE HELL IS MY BODY DOING? I can’t get an app for another week and a half!!