Confused, please help!

I have read about this a billion times and for some reason I can't figure out if my itinerary will work for this. Here it is:
GSO-EWR-NRT-PVG all back to back within 2 days. We will not be leaving any of the connecting airports
3 days later leave from Shanghai cruise port for a cruise with 2 stops in Japan
5 days later return to Shanghai and travel to Beijing
3 days later return to Shanghai
Leave from Shanghai the next day and go from PVG-EWR-GSO

The reason I am confused is because I do not know if we can use two 144 hour free transit. Once upon our arrival to Shanghai and then again after the cruise.

Thanks!