Hi I'm On Dronis 30 From Last 9 Months. On

Hi I'm on dronis 30 from last 9 months. On the 6 day of my period my boy friend and I made out. We did not have the intercourse but he ejaculated on my stomach. And before ejaculation There was some genital touching.. After 3 days I forgot to take my one dosage of dronis 30 and took it the next morning as soon as I remembered. What are the chances of pregnancy. Please help.