He came twice back to back in the same condom

My boyfriend & I were having sex yesterday using a condom (Skyn is the brand) used correctly. Since he’s never came in a condom inside me before, the sensation felt so good that he came twice back to back within a minute into the condom. We inspected the condom after with a flashlight and nothing was broken. I’m a little worried that some sperm slipped out since he came twice. Can condoms hold a lot of sperm? Is it possible that I would still need to take Plan B? Worried.