I am 28 weeks and 5 days pregnant. so far it has been an uneventful pregnancy..no complications..but lately i have been experiencing left lower pelvic pain i also have right shoulder pain..shouldi be alarmed?

Check with OB first: Pain is very common in pregnancy, especially back pain. Your problem may simply be due to the stress of being pregnant - weight gain, abnormal body mechanics, different stresses - but you really need to see your OB to make sure you don't have a more serious issue since you have pelvic pain. Shoulder pain has many causes to include gallbladder problems, so bring it up with your OB too.