The day after your missed period. So Monday you were due, yesterday was the day of your missed period and today is the day after your missed period. FMU is best in the early days as the HCG will be more concentrated. Do you chart or use opk's? Any idea when you OV'd. Think the general advice is about 14-16days after you OV but it varies wildly between women.
No charting or anything fancy. Not even really TTC yet, just less than careful whilst DH trys to decide he's ready (he admits if it happens he'll be thrilled but isn't ready to be actively trying - that's man logic!)
Ordered some cheap tests from amazon earlier so will test as soon as they arrive, unless AF turns up before then. I'm not the most patient of people so is driving me crazy waiting!