ovulation test

I took and ovulation test yesterday morning (2/3) and got nothing just barely a faint test line so I retested this morning (2/4) and got a very dark test line. We got busy shortly after and this afternoon I started feeling my ovulation cramps as I do every month so I'm hoping I got it just in time! I took another ovulation test this evening and the test line has lightened a bit. A lot must happen in 12 hours. Who else seems to ovulate super fast? TTC can be so hard..