Week away from period..

Last night I had some brown spotting when I would wipe then when I went back again I had what looks like clumpy looked stretchy brown discharge. Then after that happened the discharge went away & now i’m just wet down there today. I’m about 7-11dpo but not entirely sure which I am. I’ve also been nauseous on & off today. My boobs also feel kind of heavy a& my back is acheing. I usually spot actual blood maybe sometimes some brown/pink before my period. I’ve never experienced the kind of discharge i had. Does anyone know what it could be?