Havin two periods in a month is not uncommon. The cause could be stress or hormonal imbalance. It's generally not dangerous, but consult a DOCTOR if concerned. 

Periods can sometimes be late due to stress, changes in life, or even illness. Since you used protection, the chances of you becoming pregnant are lower. In case, the delay continues you can do a home pregnancy test for reassurance. Tracking your period is always a good idea. 

Postinor 2 menstrual bleeding is a common secondary pro-ecpemption reaction associated with emergency contraceptive use, which is usually heavier that implantation bleeds. An implantation bleeding is when a fertilized egg attaches to the uterus and it usually appears as light pink or brown spotting. In case of any abnormal bleeding, one should consult a gynecologist for medical consultation.

Irregular menstruation can be treated by taking birth control pills. Blood thinners can help.. Hormonal imbalances can be treated by medications. SURGERY may be necessary in severe cases. Stress reduction and exercise can help regulate periods. Track your cycle to MONITOR changes. Consult a gynecologist for treatment options. 

Pain in your vagina, after your boyfriend touched it with his finger, could be due to irritation or a small tear. The pre-ejaculate fluid he had on his hand doesn’t typically contain sperm but still can carry some risk of pregnancy or infection. It’s important to always practice safe behaviors and consider using protection to prevent any unwanted outcomes.