When to early to test?

Shayla • Married to the man of my dreams. We are expecting our first child after months of trying and miscarriages
I been trying to conceive with husband.  We have had a couple miscarriages. And I am suppose to schedules a appointment with my doctor as soon as I am pregent this time. I was suppose to start my period today. I haven't had any bleeding at all. My husband wants me to wait till Sunday to take a test. Would Sunday be too early to test for a postive result ?