What is that a sign of? Is that a bad thing? I am about 6 weeks pregnant.

Some slight cramping can be normal as many women will experience some. If it is constant or severe, however, let your midwife or doctor know.

Crissy,

Since you had a faint line on a pregnancy test, have you retested or are you waiting to see if your period is late first?

The occasional cramping in your lower back may be from a possible pregnancy, but it may also be from the recent UTI. If it continues, check with your doctor as sometimes it will effect your kidneys as well which can result in back pain.

As far as I know if your cramping is not severe and continuous than it is not dangerous. Its just your utreus is getting larger for the baby... bt if don't stop and its severe then consult your doctor