Is it normal to have mild cramping & nausea for 5 days, that began a couple hrs after taking plan b? took it 3 hrs after condom failure. i have not go

This could be due to: Plan B. Potential side effects w emergency contraception include: menstrual flow changes (spotting, bleeding, early or late period), nausea, vomiting, dizziness, fatigue, headache, breast tenderness & abdominal pain or cramps. Most often the nausea/ cramps would subside quickly. Take pregnancy test & notify dr if your period is 7 or > days late.