Pelvic Pain During Pregnancy: Causes, Relief & When to Worry

Question
I am 7 months pregnant and been having pain. When I told my docotr they just said its the pressure from the baby and thats it. But this pain is very unbearable. It hurts when I walk, when I am in bed, practically when i move my leg. My groin and pelvic bone hurts. It is only now that it is easing down alittle but it is still hard for me to get out of bed. Do you know what this can be? Is it really pressure from the baby? Because my left side is killing me. Its very hard for me to move and I have to hold my left pelvic to walk sometimes. Should I get a sonogram? Oh yeah they dont want to give me another sonogram, but I am changing hospitals because this one name isn't so good. please help

Answer
Due to the hormones of pregnancy, the body's connective tissues soften and lengthen. This allows the bones of the pelvis to open as the baby is delivered.
Some women develop pelvic instability before delivery, i.e., the bones of the pelvis, which are normally fused and immobile, become looser and movement/joint pain can occur. This is most commonly felt at the pubic bone, or at the sacroiliac joint. The sacroiliac is where the bones of the pelvis connect into the lower spine. Sacroiliac pain is usually felt on the lower right side, or lower left side of the back.
In response to pelvic instability, the muscles that surround the area try to take up the slack and provide stability to the affected joint. Normally, these muscles are for locomotion only. When they have the added burden of joint stability, they become stressed and painful.
Try to rest your back daily, and avoid movements that aggravate your pain. Avoid twisting movements, lifting heavy objects, and stretching the painful areas.
When getting out of bed, "log roll." Keep your head, chest, pelvis and legs aligned and roll to one side as a unit. As you drop your legs over the side of the bed, simultaneously use your arms to push your torso upright.
To rest your spine, lie down on the floor(on a padded mat or thick carpet) with lower legs supported on an ottoman or padded seat. You want to make a ninety degree angle with your legs, thighs vertical, shins parallel to the floor. Have the back of your pelvis on the floor, with a just a small gap at your waist. Breath deeply, allowing your body to rest heavily in the position. Rest for 5 minutes. Log roll to get up off the floor. Move into an upright position slowly to prevent dizziness.