Ob-Gyn questions? Ask a gynecologist online.
I am Dr. Aren and I will help with your query.It would be best to consider Plan B as it would be unwise to remain unprotected.Though the chances of pregnancy are comparatively less,it has been known to occur.It would be wise to protect yourself against an unwanted pregnancy by using Plan B.
The side effects of Plan B include headache,tiredness,diarrhea,stomach pain ,nausea and dizziness.The symptoms are probably secondary to the Plan B and should gradually fade away.The mood swings could be secondary to stress.Pregnancy following Plan B has been known to occur.
Repeated periods will need treatment,especially since they are painful.It would be best to contact your Gynaecologist who can examine you and treat you.