In answering this question, I am going to assume you have pain that is more in the groin area when you refer to having pain on the left side of your pelvic bone. There may be a couple of causes. For one, this pain might be due to the pubic symphysis separating, or the bony pelvic ring, including the sacrum, might be out of alignment. You didn't mention any low back pain in conjunction with the pelvic pain, but sometimes women can just have pain in the front in the groin. Did you try a local application of heat for 10-15 minutes? This may give temporary relief or ease the intensity somewhat.

You mentioned the pain is worse in the morning. If it is aggravated by moving in bed and, particularly, sitting up over the side of the bed, you might want to try keeping your knees slightly apart while turning onto your side and then pushing up into a sitting position. The key is to keep the knees apart throughout the movement. Also, avoid excessive or wide separation of your legs when you stretch or exercise or assume a squatting position. If you continue to have this pain in spite of these measures, or if you also start to develop low back pain, I would encourage you to contact a physical therapist in your area that specializes in the treatment of pregnant women. There are gentle mobilization techniques and exercises that can be done to restore good pelvic and sacral alignment and greatly ease your pain.

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