16 weeks pregnant .. What is the best position for me too sleep in ?

the is possible but not very reliable at 16 weeks. also the kidneys dont function to make all of the amniotic fluid until 20 weeks. before then, you help contribute to it. my first baby had potters syndrome and didnt have any kidneys. the dr couldnt verify that this babys were working until 20 weeks. everything is more accurate at 20. and once you start your second trimester they say not to lay on your back for very long. i sleep on my side with a pillow between my legs and one under my stomach.