I am recently trying to conceive, my periods are on a 25day cycle with my last period being may 2, i had a positive opk on may 12 and i have had sex on may 7,8,10,13,15th of this month and now today i am experiencing period like cramps but its not due until 26th of this month...is there any chance that i am experiencing implantation? I dont think it is but just curious. Thanks for the help