I originally thought that I ovulated earlier like cd 15/16 but I realize now that those cramps / TONS of CM could have been my body just gearing up for ovulation. Thanks to OPKs I know I ovulate cd 20/21. Since removing the copper iud 7 months ago, my cycles have been 28 days on the dot. The last 2 cycles have been longer like 33 days. Should I be able to conceive? How common is this. Trying for baby number 2. Thanks