I had sex with my gf on 21 december. We had sex, I was wearing condoms. The first condom was but the second condom, I think the sperm was pushed down and third one, after ejaculation it slipped out. When we having sex I ejaculate inside her with condoms on. The forth sex we have was unprotected sex but I didn't ejaculate. After that much action she took postinor 2 and ate both of em at once. It been a week now and she haven't had period and she had nausea, headache on the seventh day after taken the pills. Is she pregnant or she is okay?