I think I m pregnant?

Me and my bf had sex yesterday both our first time and we didn t use a condom. It only lasted about 30 seconds but I m still afraid because I know precum can get me pregnant from. What scares me the most though is that my bf said he ejaculated before coming over that yesterday and then took a shower, and if he did not urinate, there could have been a possibility that if he precummed it could have tracts of sperm in it. My bf did not have time to even say the word precum before I backed up off him. & I know for a fact he did not *** inside me. I know this was a stupid decision but if someone could tell me if there are any post-conception symptoms I would gladly appreciate it. I hav some cramping, and my vagina is leaking a little more than usual. No headache no back pain but a lot of anxiety. I am 18 years old btw and I live with my parents. I am also attending college and cannot afford a baby right now and I m against abortion. I thought of the morning after pill but I don t have the money for it because I don t get paid until next week. Me and my bf also attempted sex a week ago but it was failed, I m not sure if my period is late as it is usually irregular. Someone please help.