Hi Shi! You can test anytime after a missed period, but for more accurate results wait 3 or 4 days. I waited one week and my positive was very clear. Also, testing with your first morning pee will have the highest concentration.

I hope you did conceive!! You know, with my first I also had a light period around my normal time and thought it was just a very light AF. Turned out I tested positive a week later Good luck!