Are the chances of pregnancy high or low if...?

I had my period about 5/6 weeks ago (like May 24th). I was on birth control for several moths before but stopped taking them mid cycle (around June 10th) because I missed a bunch of days and thought I started my period... it turned out to just be "spotting / breakthrough bleeding" that lasted for about a week (ended on the 17th).. I had unprotected (a lot of it) with one guy the whole month of June. If I go by my last ACTUAL PERIOD, I'm about a week or so late. IDK when to take a test or if it would still be too early to tell...??? Do I have a slim or big fat chance of being pregnant?