Pregnancy scares 😱

Hi I'm 16 yes I know it's young but I Had sex with my bf protected on May 21st but he didn't cum at all , but he took the condom off and put it in for like 6 seconds took it out beat himself off because he didn't cum then went back inside because he still didn't come then he just took it out and beat himself off until he came. I came off my period like two or 3 days before the 21st , ever since I came off my period  I haven't came on my period. I recently has sex with my boyfriend on June 10th. I'm scared and don't know what to do , there was spotting of some blood a little but other than that it's just discharge... Can somebody help me?