Pregnancy tests

I feel crazy…I’ve taken about 20 pregnancy tests in the last week. This is my first pregnancy so I’m new to all of this and first positive ever. I’ve had cramping and headaches on and off. Hardly any nausea. I’m so afraid when I go to the doctors next week they’re going to tell me there’s no baby. Is this anxiety normal? All the pregnancy tests I’ve taken have all done up positive. The bottom 2 tests are within the past 24 hours. With how dark they are is it likely I’m stressing myself out for nothing and there’s really a baby?