My latest irrational fear 🤦‍♀️

I am 17.5 weeks and when I use my Doppler it seems like my baby is still sooooo low. I literally have to put it on my c section scar or even lower to find her. I had an emergency surgery after my c section and ended up with a wound vac machine which made the incisions heal from the inside out instead of all at once. As a result my scar is very “inverted” like it is deep and has a lot of scar tissue. So now I’m like omg what if she can’t move up higher bc of my internal scar/tissue!?!? How far down do y’all have to go to find baby on Doppler at 17/18 weeks?????