5 weeks with baby #2- bad back pain

Jenn • Trying for #2
Hi all! First time poster!
I am currently 5 weeks pregnant and have had lower back pain mixed with sciatica the past 3 weeks! Anyone else have this? I don't remember this with my first... In the car is the worst!!! My prlvic area has that raw feeling too when you are about to start your period the past 3 weeks... Am I just more intone with my body this time around?
I don't see my doc for another 2 weeks 😕