Did I take my birth control too late?

I’ve been on and off of BC for around 7 years now. I am on my second pack of microgestin after being off of it for a year and I always take it between 10:10 – 10:30 every night. Saturday morning, I had unprotected sex. Later that night, we went to go see Hunger Games Catching Fire. I have an alarm on my phone to remind me to take my pill, but I don’t know how to make the phone alarm just vibrate. Last time I put my phone on silent, it went off loud in the middle of the movie and I had to basically empty out my purse in order to find it to turn it off in the middle of the theater. To avoid that, I turned off my phone. Being immersed in the film, I didn’t remember that I didn’t have my trusty alarm on to remind me to take my pill. Immediately after it ended, I turned my phone back on and saw it was 11:30. I took my pill right that second. Am I still protected if it was nearly an hour and a half late? It was the first pill of my second week in the pill pack if that means anything.