Late taking Bc, then got sick

I work third shift so I usually take my pills before work, at 10pm. I didn't remember until almost midnight last night. I had unprotected sex earlier tonight, and proceeded to take my bc at 10, before work. Around 3am I got sick. What are the chances of me Possibly becoming pregnant, if any at all, since I was late taking my pill last night & me getting sick tonight? Slim, I'm hoping!