tied tubes n pregnancy help!!!

ok so I what my Dr assumes was a miscarriage of a tubal pregnancy about four to four and a half weeks ago this month I was five days late for my period when I started spotting slightly it stopped within an hour so I went ahead and got the depo shot to avoid periods and level out my hormones note I had my tubes tied two years ago after my daughter was born well I had been feeling weird for a day or two just assumed it was the shot well then just out of curiosity because my boss kept asking I took a test and this is what I got I've gotten one just like this since and one negative an I crazy and that's just an evap or what I'm confused can the depo cause false positives