late period

I had my period may 23-27 and on this app it says I should've got my period June 21st but it never came I'm not sure what to do. I had sex on the 23rd but he didn't cum at all we used protection most of the time and then went raw for a little but he never came 😩 I'm super nervous I don't have a adult to talk to, my mom would be really mad. My cycle is usually 28-30 days but it's been 35 days. Please help😣