I get shooting pain on the right side of my lower back/butt and sometimes can hardly walk. It’s always worse at the end of the day. And my right leg gets a numb type of feeling? Laying down on my back seems to help but sitting and walking make it worse! Had this my last pregnancy too but didn’t realize it might be sciatic nerve pain. When I told my old obgyn about my back hurting he said “welcome to pregnancy”🙄 and asked no further details about what the pain is like so I didn’t even describe it to him… will ask my new doctor but it seems like it might be sciatic?