I had unprotected sex. What should I do?

I had unprotected sex with my boyfriend on 23rd of this month. It was not penetrative though and he neither ejaculated but I am not sure about the pre cum. He couldn't penetrate through me. We both were doing it for the first time. I took a pill of unwanted 72 today, that is, 27th of this month. Will I get pregnant? My left leg is paining a little bit but I don't think I feel anything else other than this.

As you describe, especially if you took a pill of unwanted 72 today. you will not get pregnant.

if you need extra reassurance go see your gp. 

You took a pill of unwanted 72 so you shouldn't be pregnant. You can see your doctor just to be sure.