Contraceptive pill?- I had a gastric bug last weekend and was throwing up. Am I still protected?

I had a gastric bug that started with me vomiting on the weekend. I was feeling quite queezy in the stomach on Friday so I didn't take my levlen pill till around 5pm that day. I didn't throw up till the next morning at 6am and the throwing up was continuous the entire day. When I was feeling slightly better, I took my pill at 8pm and didn't throw up at all after that. On Sunday, I had 1 pill in the morning and 1 at night, just to be on the safe Side. I usually take my pills around 7am everyday. It's now Wednesday and I have taken them at my normal normal time since sunday. Am I protected? I am only 16 so I don't want there to be any risks with me becoming pregnant.