Originally Posted by lurkette

With many OTC pregnancy tests, you can start testing around day 8 post-ovulation. So if you know when you ovulated, you can start peeing on sticks and see what happens. However, having just watched a good friend go through all this, I would wait till your period is a day or two late to test. You avoid several days of disappointing negatives if you are pregnant, and you're likely to have a high enough hcg level by then to show on almost any OTC test. Some tests are sensitive enough to pick up positives on day 8 PO, but you're better off waiting (and saving your money on those expensive little sticks) till you're fairly sure of getting a positive if you are in fact preggers.

Good luck! Fingers crossed!