Contraceptive pill question

Patient: Please could you help. I started my pill after my bleed and took 15 microgynon 30 tablets. I forgot to take 3 after the 15 and began to bleed. i continued to have the bleed as though it was a period. 1 week later started my pill. Technically i have not had a pill for 13 days and in that had a 7 day bleed. I started taking it again yesterday and had un protected sex yesterday. I continued to take it today so i have had 2 days worth. Is it a strong possibility that i could be pregnant?