HELP! condom stayed in but he pulled out! chances?

Hi so I had sex a week ago now, we always use a condom and he always pulls out even with a condom but this time when he pulled out I saw him finish on my thigh but the condom stayed INSIDE OF ME! I freaked out because that has never happened to me but he said he did not finish in me and I know that because I saw him finish on my thigh but I am just stressing out that what if I could be pregnant just because the condom stayed in me. Everyone keeps telling me I can't be but I keep stressing out! Helpp! ( also I when I did have sex it was like my 2nd day off my period and I did bleed after, I was not fertile)