I had sex june 7th had my period the 14th had slight bleeding a week later, now 25th no period?

I meant now its july 25th and no period :/

The fact that you had sex seven days before you had your period suggests that there is a very small chance the sperm could have survived in your body until you released an egg. On the other hand, since you are irregular, anything is possible. I wouldn't worry about being lat since you said you are very irregular, but better safe than sorry. At this point a home pregnancy test should be 100% accurate, you might want to consider taking one. Hope this helped!