Am I supposed to get overtime?

Hiii so I’m a cna in nc and my company work week is wed to wed to work overnight. We have one long week and one short week. The short week I work 36 hrs and the long week I work 48. (12 hr shifts 645 pm to 715 am) for example this coming week after wed: I work Friday sat sun off Monday and Tuesday (36) then I work wed and Thursday, off Friday sat sun and go back in Monday and Tuesday. (48) so should that be 8 hrs of overtime ?