Havent had my period in 33 days.

First off, I'm irregular. I use a condom while at the same time, the pull out method while the condom is still attached. I was supposed to have my period a week ago ): I had unprotected sex (he pulled out, still not safe tho I know) two days ago. I also got drunk that day as well so I am not sure if that effected it in any way. I am not feeling nauseous but I occasionally get emotional and my breasts are tender. Idk what to do... Im stressed because I am one semester away don't graduating with an associates and my mom and dad will be so disappointed in me if I was pregnant. ...Should I take a pregnancy test now?