Hi! I have a question...

The thing is I had sex with my Husband without protection june 27th and 28th and supposedly my ovulation should've come one week after that date, but I never had it, I know that, because I know I'm ovulating when I see my CM has changed but now I haven't had any CM ... Are there any possibilities for a pregnancy? I know it is too soon to know anything, but it never happened to me that I missed ovulation days, because it's quite noticeable in my CM.