This is kind of random but.....

Did any of you ladies get a positive pregnancy test 4 days before your missed period? I ask because I got my positive on March 3 at 11 dpo (lmp Feb. 3, 32 day cycle, ovulation on February 20) and my test line was darker than the control line. Every thing I've read and all the pictures I've seen says/shows that I'll either get a negative or a faint positive. I kinda wonder if I just still had a "period" last month and am actually further along than I think because SO and I only had sex once in February and that was on February 20th, the day I supposedly ovulated.