contractions?????

Rebecca

34.5 weeks here.. last night got woke up out of sleep at 4am to experience what felt like really bad period cramps for roughly 15 minutes long and i had diarrhea the entire time. it was only once. i just got home from work, and it started out slow at 10:52 then was really bad at 10:57 then completely was gone at 10:59. are these contractions?