Ok... In short... Missed period (first time ever aside pregnancies-have 2DDs) 6 months ago had mmc and dc. Periods have been between 24-29 days. I'm currently CD 32 unusual for me- feel very bloaty, bad tummy tmi... But no sore boobs and don't feel pg. Pg tests negative. When do I start opk?? I'm so confused.. Plus worried it's an age thing.. I'm 37... Really hoping there's still time. Any one know when to start opk with a missed period?