Just thought I'd pop in again hon - got my BFP today (PG with #2) and we only DTD once - yup, just once. That's all it takes. I have FF, digital OPKs and damn good timing to thank. Being WAY to prepared for TTC sure paid off for us. We DTD the day before I o'd. I knew the time was right by looking at my chart, my past charts and my CM. I got a positive OPK the next day then solid temp rises. HTH!