Kidney stones during pregnancy

esaad03

Hi guys, I'm 27 weeks and was experiencing blood in my urine and back pain and cramping. I went for an ultrasound of my kidneys yesterday and it looks like I have 2 kidney stones. Anyone with experience in this? What will the dr do? Will this effect my baby or pregnancy in any way. I've just heard how painful they can be so trying not to freak out. Thank you ! 
Liz