I remember reading on the net that Ov bleeding is considered a "good" fertility sign!

I would imagine that it would be preferable to DTD before you see this bleeding, as it is best to have the sperm "sitting in wait" for the egg, so to speak... that said it takes the egg some number of hours to travel... to i would bd when you see it as well, just in case!
Sounds like everything is great - goodluck, have fun!!