Ectopic Pregnancy

Hi ladies, with an ectopic pregnancy does your lower back hurt a lot? I had an ultrasound done at 6wks 1 day and she said didn't see anything but it could be that I'm really early. She showed me the ultrasound and all you could see was a small dot. My lower back has been hurting and sometimes my right side hurts but it's bearable. She also said it could be an ectopic pregnancy. This is so scary ugh