Its the weekend woo hoo but i have this stuck on my mind, help lol!!?

my period in may came on may 26th.....soooo if my period stayed coming every 32 days like it pretty much had been then this month i would have been fertile around july12th...so we had that day......but my period came on july 2nd so a few days later then i had expected so we also had on july 17th.....do you think we have a change at pregnancy this month?