I took planb a week ago and haven't seen my period yet but im having cramps and breast are swollen. Could I be pregnant?

Yes. While these could be side effects of medication or hormonal influences of the menstrual cycle, it is pretty easy to get a home pregnancy test and check.

Related Questions

I had unprotected sex and about 30 hours later had girlfriend take plan b, five days late on period sore breasts and slight cramps? Is she pregnant

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. Take pregnancy test & notify dr if your period is 7 or > days late. She could be pregnant or this could be Plan B side effects.