4w+5 & scared of CP

I haven't really had any symptoms. I tested out of hope, not because I felt a certain way. Light, intermittent cramps have gone away. No morning sickness. I know some women have no symptoms for awhile, but it makes me super nervous about a chemical pregnancy. I haven't bought any more tests because I don't want to obsessively take them every day. My ultrasound isn't until 9 weeks. I'm healthy...doc said my numbers were perfect when we were TTC. Ugh, guess I just want some reassurance that everything will be OK. Maybe I should test once a week to keep myself calm?