31wks pregnant having pelvic pain/press mostly on left side. baby was breech on us a week ago. possible baby is already engaging? normal to feel this way?

It is too early for: Engagement . It is still possible that the position may change . Pressure is common and should not make you feel worry . Good luck.

Round ligament pain: As the uterus grows with the baby, there can be stretching of the ligments that hold the uterus called the round ligaments. These can cause sharp intermittent pain in the pelvis. They usually start sometime in the 2nd trimester and they are normal.