Pregnancy possibility. Please tell?

I got my periods on 26Sept. After 12 days of taking norethisterone for painful periods after 3 days of stopping the pills.InOct. no pills on 12-13Oct me and my boyfriend got involved in non penetrative intercourse but we didn't had any direct genital contact or his penis didn't touch my vagina.Fingering,oral,dry humped and blow job.But I don't know if any amount of semen was present on his clothes or fingers or not.If it will be,in very less amount.My periods didn't arrive on 26Oct.Took hpt on 28Oct Negative.From 31Oct started Norethisterone 5mg 3times a day for 3days.Took some more hpts on1,4,6Nov.Completed Norethisterone on 2ndNov. From 7thNov started with my periods with same amount of bleeding like my previous periods accompanied by little clots. On 12thNov my periods ended. From 15thNov. the 9th day of my periods I started taking ovral-G as my gynae prescribed it for 3months.Im getting withdrawal bleeding in pill free week of ovral-G. Can I be pregnant please tell?