Hi Ashley, the normal ovulation day is 14 but I am not too positive how Clomid affects this. Here is a link on JM that I found about Clomid.
http://www.justmommies.com/articles/clomid...ovulation.shtml
So for OPK's I use Answer brand (dip kind) and would start testing on day 10 with non-FMU urine. Test the same time each day. When the test line is as dark as or darker then the control line you will ovulate within 12-36 hours so be sure to DTD. Once you get a positive they say there is no need to keep testing but many of the gals here do

Here is a good link on OPK's and HPT's
http://www.peeonastick.com/opkfaq.html#1
You can also start charting to monitor your temps and cervical mucus (and other symptoms). This helps you track when you ovulate and when you should DTD. Sign up at
http://www.fertilityfriend.com (basic membership is free). You'll need to by a basal body thermometor because these are way more accurate (remember they take a little longer to give you your reading - around 3 minutes). You'll take your temp the same time each morning before you get up or do anything. Put your temps in the fertility friend chart and if all numbers look good it should put a red line to mark you ovulation day once it has enough data. Even if you don't have a bbt thermometor yet I would still go ahead and sign up because they send you a lesson each day that helps you figure out the whole fertility thing.
CM is another great indicator of ovulation. When you have egg-white (clear, shiny, real stretchy) CM you are at your peak period so be sure to DTD.
Then there are the other theories and things we like to do (won't name names...)
Stay in bed and elevate you hips at least 15 minutes after sex to help with gravity
Doggy style has most penetration for getting the swimmers up there
Orgasim at the same time or after your hubby because the female orgasim sucks the semen up into the uterus to aid in the trip to the egg
ETA: Just want to be clearer in case you don't know this but you start counting your cycle days (CD) from the 1st day of you period (not spotting) but active bleeding. That would be CD1 so CD14 would be the average ovulation day.