I'd ask whoever came to identify her as a pit pull if they could pick a pit bull out of a line up.... there are over 20 breeds that are mistaken for pit bulls all the time.
Saki did the same thing the first couple nights.. I took her out twice during the night those times. For about a week after that she would wake up and cry once and I'd take her out... now she's sleeping through the night from 8pm-6am. She's 13 weeks ...