Hi I had sex with my boyfriend on Saturday and we didn't use protection but he didn't come inside me and the next day we had sex again but this time he came inside me and I took the after pill (take action) like 8 hours later but the next day at night I threw up. I was also ovulating not even 6 days ago. Could there be a chance that I can get pregnant? What should I do now? Please help me I am also irregular so I don't know when my next period will be.