I've had regular periods since I was 16, never more than a day or two early or late. My husband and I have been TTC for a few months now (currently have a two and half year old boy) and I am about 6 days late now. I took three of the "early detection" tests before my expected period, and then a regular test every other day since, all have been negative. I was having a physical anyway so asked for a urine test and that was negative also. With my first, I tested positive the day of missed period.

Two questions: one, has anyone found that they tested negative for more than 7 days after missed period, but turned out to be pregnant? And two, if I truly am not how should I start my <a href="https://play.google.com/store/apps/details?id=com.glow.android">ovulation calendar</a> again for this month? Do I still start counting from the day I was expecting my period, or do we lose a month and I just have to wait until period comes next month and start over then?

Thanks so much for any help you can give!!!!