Yes, my baby did that to me too.. whenever I turn to the right side to sleep, I will feel her movement as to express her discomfort. Once I turn to the right side, she will stop her kicking and stretching. Now my tummy is getting bigger and my t-shirt are getting 'shorter' from day to day, might be unable to cover my tummy i a week time now..
Oh... My baby also keep stretching and kicking me when I turn to left side to slp. You can try putting a pillow at ur side to support ur tummy when u slp. Maybe when u slp at ur slp, ur baby feeling uncomfortable that y stretching n kicking u.