여자 친구가 생리를 하다가 2일 후에 플랜 B를 복용했고 벌써 2주가 지났는데 생리를 하지 않았습니다. 원인이 무엇인지 알 수 있을까요?
여자친구가 생리를 한 후 2일 후에 섹스를 했어요. 그녀는 플랜B를 복용했고, 이미 2주가 지났지만 생리를 하지 않았어요. 생리를 한 지 얼마 안 돼서 그런 걸까요?
My girl friend has period and after 2 days she took plan B and it has been 2 weeks already and she did not have  period. May I know what is the cause? 
My gf had her period then after 2days. We had sex she took planb its been 2week already she hasnt had her period is it because she just had her period?