I threw up my birth control pill?

So I had a bit too much to drink one night last week and threw up. I just started the pill a few months ago and am still experiencing breakthrough bleeding, so when I bled the next day a little, I did not think anything of it. When the bleeding wouldn't stop for a few days, I realized that I probably threw up my pill. My boyfriend and I have had about 3-4 times since last week. Am I screwed?