My girlfriend and I had unprotected sex on 4 April, later that night I bought postinor 2 and asked her to take the first tablet, she said that she got a stomach pain for a while. After 12 hour of the first tablet which was 5 April ,morning, she took the second tablet. On 6 April, she found spotting, and that didn't appeared again. On 8 and 9 April , I asked about her condition, she claimed that she felt stomach bloated , probably started on 7 April, as she said "these few days". Now, on 10 April, she told me that she still having the bloating problem. She couldn't remember her last period, but told me it started around 14 March. Both of us are afraid of that , postinor 2 will not work.

 

Is stomach bloating a side effect of the pill or a syndrome of pre-menstrual or it is a indication of pregnancy?

She had an irregular cycles, sometimes 2 days early or 1 week later.

Please give me some advice.