Is it just me?

Is anyone else completely freaking out at the thought of a chemical pregnancy?! Just got my BFP yesterday and I already scheduled a dr. appointment to confirm it and get blood work to get my levels. I'm so nervous! I read something like 75% of early pregnancies end in chemical miscarriages without the person even knowing they were pregnant yet. That's really scary. I already have a 3 year old but I didn't find out so was pregnant with her too I was like 7 weeks, so I was kind of out of that risk situation. Now I'm not even quite 4 weeks according to Glow and I'm a nervous wreck! Praying for good levels today!