I need help...

Destiny

Alright so about 2 or 3 weeks ago now, I found out that I was pregnant after experiencing an early miscarriage in December. well, I bled in January (tmi) but I don't know which day really. well I took a test yesterday just to see how dark it had gotten and the test line was darker than the control!! which makes me VERY happy but I was wondering..(Since I don't have my ultrasound for 15 more days & I'm impatient) about how many weeks when the test line usually is darker than the control line??