I'm having an ultrasound done on Wednesday to find out the sex of my baby and suggestions on trying…

I'm having an ultrasound done on Wednesday to find out the sex of my baby and suggestions on trying to make sure that he/she is in the right position last time I went for a check up and my baby did not wanna move. The doctor was pushing my belly around and all the baby would do is kick me lol. I just wanna know if there's something I can do to make sure the baby will be active at least or be in the right position lol.