Conceiving last day of fertile window

Giggles
I had sex on the last day of fertile window which was Saturday May 30 and unsure if I can get pregnant . I had cramping lower belly on Tuesday June 2nd and my period is not do till the 11th.  Very anxious and nervous as this was not planned and would be a third pregnancy and my last pregnancy was 8 years ago
Thanks for reading and any advice given is apreciated