Gave birth march 29 and I had unprotected sex twice but took the morning after pill both times but the 2nd time I took it 52hrs after... I've had a period may 29 that lasted for one day and took a home pregnancy test and it was negative I told the doctor and took a pregnancy test it was negative and its now june22 and I have yet to have a period this month yet... I'm very fatigued and moody sometimes I'm nauseous could I possibly be pregnant again? I am not be taking birth control or breastfeeding

Have you done another birth control test this month BUT::
As I am sure your doctor told you, the morning after pill has a side effect to make you miss a period for one or two months and also change your cycle time.

Also since it was not designed as a regular use birth control, taking it twice fairly close together may cause other side effects