It may be, and it may not be. You can go to ovusoft.com and look at some charts with implantation dips and compare, but keep in mind, that a dip in the chart doesn't always mean implantation. I hope it is though:) When are you expecting AF?
11-13-2006..If I charted right I ovulated around 10-27...This is the first dip....and the temps stayed high until today....dropped back down to my coverline.....