Can it detect pregnancy?

Hi guys!
Quick question and I apologise if it's a stupid one...
Can an ovulation test detect pregnancy? I came off the injection on the 7th July
But started bleeding the 6th. Bled light for 6days so if it was a period I would be due on around now. (My cycles used to be 30/31 days so going by that) I've just done this ovulation test and it's come up with this. Thanks! ☺️☺️