need some advise !

Lucy.
For all those TTC experts!! 
I ovulated late this month - according to OTK. Glow pushed my period back by 2/3 days accordingly. My cycle length is averagely 27/28. 
I'm currently on day 26. I've been getting cramps but sharp to the right or left. And have had them for the last 2 days - I usually get them only a day before or on the day of AF. Should I wait to test until Saturday (which would be cycle day 30!). Originally AF would have been due tomorrow/Thursday. Could I test now? 11 DPO. TTC 9months!