So MANY prenatals

Since this is my first time pregnant, I am doing my best not to be that mom who is analyzing every little detail. I just believe that only creates more stress and anxiety on our bodies. That stress and anxiety then stresses our babies out. I don't want to add any stress to this baby. So, I went to a local CVS and purchased their store brand prenatal to start taking. I started taking them as soon as I found out I was pregnant with a home pregnancy test. My doctor appointment isn't until August 10th to confirm pregnancy, so I am hoping I made the right choice. Any advice?