Why am I getting pimples? I want to cry?

I've never had pimples in my life! Now all of a sudden, I have so many pumps on my face and I squeeze them, and then they turn into red marks which take days to fade.
Is it because I took the morning after pill a week ago? Is it because my boyfriend has been getting me a lot of fast food and chocolate? I used to eat really healthily. I don't know what's going on!?
Why am I getting pimples? I want to cry?
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