Still positive

ch

Yes went for blood work 2 times this week waiting on a call from dr. So I took depo right after my abortion on July 7th. I did have sex 2days later. I took a pregnancy test maybe a week after and it was faint so I know the pregnancy hormones were leaving my system, a week after that I took pregnancy test and it was very dark not to mention I took ovulation test and the test line was also very darker than the control line. Is there a chance this is a new pregnancy?