Chances of being pregnant?

So my period ended April 24th. Then on May 3rd I had spotting from the 3rd-5th. Not sure when I ovulated. I tried <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> after the spotting and never got a positive opk and I ran out before I ever got a chance to see if it would get a positive (that was a week ago). 
But for the last five days I've been having cramps, sore boobs (my nipples look darker too) and really bad nausea to the point where if I smell something even slightly bad I want to throw up. I didn't have any throwing up until today  it was only one time though. 
So what are my chances of being pregnant? Would rather not just go out and buy a pregnancy test and see another bfn 😔

Vote below to see results!