Took postinor weeks ago. Feel weak, breast tenderness, nausea until now. What happen to me?

It started on May 6th. It was the day that my period ended. He didn't cum inside me. But I freaked out about pre-cum so the next day I took postinor 2, both pills at the same time. Since then, I've been feeling sick. I woke up feeling nausea and stomach discomfort. I also notice that my breasts are tender, bigger, and very sensitive to touch. I am easily irritated and get angry. I also got spottings and dark brownish thing came out from my genital. But what's worrying me a lot is this stomach discomfort. It gets really hard to wake up in the morning. Ive gone to the doctor without telling about me taking postinor and he said it's dispepsia. I've taken medicine for dispepsia but I don't feel significant changes. Is this morning sickness? What are the chance of me getting pregnant? Ive been doing a lot of reading on the internet and there's many that going through the same thing as me. But no one tell the outcome whether they're pregnant or not. This is really getting into me. Please help.