Could I Be Pregnant After Taking Plan B, Despite Mid-cycle Bleeding With Clots?

Hi doctor, I gave my boyfriend a handjob he did not finish. I washed my hand with plain water and masturbated after an hour, it was the 11th day of my cycle. I took plan b pill immediately after. Today is 19th day and I m bleeding with clots. My cycle is usually 32-37days long not 28 days normally. Am I pregnant, please help