Nervous momma

I have three wonderful, healthy girls and this is my 6th pregnancy. My youngest is 6 and after her my stomach was off, even after I got back to the gym and got everything back the way I wanted. I ended up with two umbilical hernias and had to have surgery to fix. One in spring of 2014 and the next year to repair that surgery, in spring of 2015. I've not been to the gym or really worked out since, to make sure and prevent another surgery. (Worse than all of my c-sections) but now I'm pregnant and nervous. I've been having crazy stabbing lower back pain and stomach pain. No cramping or spotting so my nurse doesn't say much to encourage or calm. I see my doctor in 2 weeks for the first time with this pregnancy. Just looking for some peace and relief.