Blood clots in legs or sciatica

Went to the docs today, gotta get some kinda of ultrasound on my legs to make sure they are not having clots in them on july 6th. They think it's sciatica so after this ultrasound if everything comes back normal I get sent to the chiropractor which would be a good thing because of how much pain I'm in every single night when I try to go to sleep lol MY QUESTION IS has anyone else been to the chiropractor while pregnant