Implantationtion or just period?

Ok so here's what's happening to me I actually got my period???? on the 28th it started brown then eventually turned red with some sticky somewhat water mucus. Then this afternoon it went back to brown sometimes nothing when I wipe. I took a pregnancy test with wondfo and had a second line but then took two again and those two were negative. So then I tested with clearblue and first signal(walmart) it was also negative so now I don't know with this discharges changing and all i will test with "FRER" soon just want input if anyone went through this and had a possitive test.