I am also on the same boat and trying to find the right day to test! Some say 10 days after conception, but isn't it safer to wait for the missed period date to avoid disappointment?
Yes! I actually tested 12 days after my expected ovulation and got a light line. Did you experience any cramping before testing? I was so confused if it was periods or pregnancy.
In my home, my saas advised me not to hurry with these plastic kits. She said waiting for a full week after the missed date is the old, reliable way to be absolutely sure.
I totally understand how hard it is to wait and how your heart must be racing with hope. Try to wait till your missed period day so you get a beautiful, clear positive without any doubt. Big hugs to you!