Please help!!! Traveling soon

I am American and bf Canadian we have all flights purchased but separately and with different airlines to be cost effective

Flight1- YYZ to PEK arriving 3/23 16:50
We would leave and check into hotel
Flight2- PEK to BKK leaving 3/25 20:05
Flight3- BKK to KBV leaving 3/27
Flight4- KBV to PEK leaving 4/1(with connection in Shanghai arriving there at 6:00 on 4/2 then taking 9:20 flight to PEK) arriving PEK 11:55
Final Flight- PEK to YYZ leaving 4/2 18:50

The only time we would be leaving airport in China is 3/23 to 3/25. Do we qualify for 72 hour visa?!

Thank you