is it possible to ovulate and not get a positive opk? I've had EWCM for 5 days, started testing at second day, no positive results. I really thought I'd ovulate today so have been really fed up as I convinced myself I'm not ovulating this cycle. But in the last hour I've started to get a dull ache in my right side which is a good sign for me. Could I actually be ovulating?? I hate the sticks!