Need advice

Juile
Hey guys , so last month I was on birth control to try and help regulate my period . Me and my husband have decide to have a kid so I've stopped taking the birth control the last period I had was April 1-6th and that was while I was on birth control . Its now may 1 and I didn't get my period . Me and my husband have been having unprotected since my last period . 
 What should I do ? I'm not sure what to think because before this my periods were extremely irregular but while last month on birth control came on time . Has anyone gotten pregnant this way ? Do you think there's a chance