so long story short. I have taken 4 pregnancy tests in the last week all faint positive however last one was a little darker. well this past weekend I bled. Friday I spotted sat and sun normal bleeding and today brown very light. I'm still always tired. and normally when I take a ovulation test during af there is always two lines and pretty much always positive or dam close. well today I wanted to be goofy and took one and ovulation is negative with a very very very faint line. so could I still be pregnant? I'm nervous and normally I get af that last 8 days