Ovulation help!

Guys I need help! I'm so confused. I used CB Advanced opk this month. Got my 2 days of flashing smileys, and hit peak Saturday morning. I tested again Monday and I was back to low fertility. Today is Tuesday, and I'm having O cramps, bloating, lots of EWCM, and some light brown spotting. I've never spotting with O, but I did miscarry my first baby in May, which would be why. We're now trying again. I haven't gotten a period yet, as I have been testing with OPKs since my HCG went back to zero. It took me 28 days to hit my peak since my levels went back down. I'm curious to know if with my cramps if I'm actually ovulating now, or do the cramps and spotting come after the big O? Took another opk and its negative. Think my egg just released? I would be happy if it did bc we DTD on Sunday my 2nd peak day b/c hubby had to work all day Saturday. Thanks!