I need some insight...

Jewel Danielle

I'm 11 dpo and since 7 dpo I've been having brown on toilet paper when I wipe. I thought maybe it was implantation bleeding but it's been going on for 4 days now and I'm not supposed to start my period for 3 more days still. I have no idea what's going on or what to think. I've taken 3 pregnancy tests the last 3 mornings and all negative (just dollar store tests) not sure what to think and wondering if anyone has experienced this.