It depends on when you typically ovulated. I you have no idea, start on CD10. I start around CD15 because the earliest I ovulated (until this cycle) was CD19.
I got a flashy smile on sunday another on Monday and yesterday a solid smile.. we dtd twice yesterday! maybe tmi, but I was on top position so I hope that works.. im not sure how long you have after the solid smiley.. I saw it yesterday morning.. we prob wont dtd again until late tonight. and I may ov before that..
Re: When do i start OPK