Anyone get sharp pains ...?

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Today I'm 13 DPO and last night at around 3 am I woke up to sharp yet dull (hard to explain) but uncomfortable pains in my right side lower abdomen. Like a twinge and then nothing then a few seconds later another one etc for about 5 mins or so. I woke up later on and it was as If I could feel the impression of the twinges still in my side when rolling around. 
bbt has also been flat for the past 5 days AF due tomorrow 16th and three bfns so far ... Anyone else had the same twine or pain ?