Please don't judge.

So I have heard that you can take an ovulation test as a pregnancy test. So af is due tomorrow and I have no pregnancy tests in the house but have a stack of ovulation tests. Me being as impatient as I am decided to do an ovulation test and this has come up with a faint positive line now I no I have already ovulated this month as I got a def positive. I am just wondering if you really can class a ovulation test as a positive pregnancy. Please no judging I just really really want my BFP.