What should I do

So I am not on birth control , and my boyfriend did not pull out fast enough tonight. I’m not sure if I should do something or if I will be okay. Background : I’m a body builder and 3 weeks away from a competition so I have lost my menstrual cycle due to stress and low body fat %. So the odds my body would take a baby is probably very slim.. I’m 5 days late to start and not in a ovulation window . but I wanted to see what others think. He’s never accidentally cumed in me before , he’s always very good with it but I guess tonight he wasn’t quick enough. What should I do?