just wondering

so I had my nexplanon taking out june 7 and I was on my period which started on june 5 and ended on the 12. well june 28 I had light bleeding and some light bleeding on the 29 and it stopped I took a test that day and it was negative. so I waited and I was suppose to get my period on the 19th of july and didnt I took a test and it was positive. I have takin about 4 more over the weekend and they are all positive too. I made an appointment but they can't see me until August 14. so I was wondering did I get pregnant last month and when I had the light bleeding on the 28 and 29 if that was just from implantation or did I get pregnant this month.