opks as pregnancy tests

So, I just wanted to post my results...hoping to help you girls still TTC. I'm 4 weeks pregnant and I used 2 opks to see what the result would be now that I know I'm pregnant! The test line turned up darker than the control! Idk if they would've done this before I knew I was pregnant as I haven't taken them at all this month ( we weren't actually trying to get pregnant this month).