bright lights big city

so after having an awesome weekend in nyc with my dh- two days later i am still dragging it. i don't know if you grow a particular baby part in week 14 that makes you more tired than normal or if the baby is still pissed that we chose to walk nyc on saturday but last night i went to bed at 8:30 and slept through the night and i'm getting ready to turn in for another 8. boy am i tired!