We have not used any contraception for almost a year. Properly started TTC around September and then from late November, we started doing all the 'right' things - temping, observing CM (hmmm), bd-ing at the right time, taling vitamins etc. Basically following all the advice!
It took us over 20 months to conceive our first. I think the time from ovulation until AF is a little on the short side - around 10 days sometimes slightly more, sometimes less, according to my charts.
So - how long would you leave it before seeing the doctor for advice?