Hello,
I agree completely with the comments of peekawho. Early pregnancy can be difficult, especially if you've had a loss in the past. But these matters are out of your control. Try to enjoy the fact you have a healthy early pregnancy.
Best regards,
Dr. Downing
Stop testing. The darkness of the line is meaningless now. If you are worried about your pregnancy, contact your doctor. Taking repeated pregnancy tests will drive you crazy, and will not tell you a thing.
If you are concerned and are not feeling right, see your doctor.