Has anyone gotten Pregnant 8 wks pp?

My little story I'm 10/11 wks pp post 10th delivery, I am exclusively breastfeeding our little pennut , don't remember when the last time anything happened between my husband and I he says 2 wks ago but I don't remember we barely were even together , stopped testing positive since around 8/9 wks pp now I'm 10/11 weeks pp and felt super off for 2 last days so I tested and yesterday I got a super faint line with Pregmate strip this morning re tested and go 2 diff tests positive.... I don't know what to think some of my friends tell me it's still hormones but idk....