Help with OPK!!

Amy • Married to my best friend since 2007 TTC our first since September 2014
So I read somewhere that you should be BD'ING the 5 days leading up to a positive opk. My problem is that I've ovulated at different times each month since I've been tracking. I'm on clomid and this month I actually o'd on CD15 so I know the clomid is working but we only started BD'ING when I got a positive. Have yall had success with having sex on the day of a positive opk or only the days leading up to it?