Ok so my last AF was 29/1/11 i have generally 30 day cycles. On Wednesday and Thursday DP and i DTD. Both days were neg OPK. Did not DTD yesterday, and this morning i checked OPK (First morning urine, Opps!) It was Positive, i redid the OPK at 11am to make sure and now Negative. I will try and DTD again tonight, but have i missed the boat by not DTD yesterday We have a DD and desperatly want to give her a little brother or sister