Is It Unlikely That I Can Get Pregnant I Had

Is it unlikely that I can get pregnant I had unprotected sex but was uncomfortable I didn't want it to happen and I don't know if I was ovualting so I told him No and to stop so sex did not last long maybe just a few seconds and he did not finish at all so he said I won't get pregnant but I don't want to risk it so after that he said so it can ease my mind we went to the store and bought Take Action emergency contraceptive and took it immediately and I am so scared if what of I was ovulating like what of it was my most fertile day and I had no idea so I am extremely worried please help