My girlfriend and Plan B?

Plan B is not something you should take lightly. It is a SERIOUS dose of hormones and it can disrupt her cycle. She should have read the directions that came with her medication completely so she would know what to expect.

Have her call her doctor and check in with them about what's happening and when she should expect her next period. Most likely what she experienced was some breakthrough bleeding. Her uterus has been disrupted by the Plan B and the exertion of sex caused a little bleeding.

If the two of you are having sex, you need to get her on a regular form of birth control immediately. She CANNOT take Plan B often, it will make her sick. At the very least the two of you need to learn to use condoms correctly and use them every time you have sex.

Plan B is not an acceptable regular birth control. It is for emergencies only.

I don't remember how Plan B exactly works, but I have heard that it can mess up a woman's period, which of course would happen if the Plan B pill contains any artificial hormones to prevent the pregnancy (like the Pill). If she is concerned, I would suggest she see a doctor.

It could be her period.. I don't think it's exactly on time.

Well she's definitely not pregnant because otherwise she wouldn't be bleeding. My periods come on irregularly.

But then again I am in my teens, haha.

I don't know what happened but she's not pregnant and it's probably her period. Tell her to wear some pads or tampons, whichever she uses and then a few hours later see if there is still blood.

Then it's probably her period...

it is not likely that she is pregnant... along with her being surprising if she did in fact replace into pregnat from this occasion she can try 2-3 weeks after it, it truly is the time span from ovulation to a woman's era in spite of no count if or no longer she is oftentimes happening

I'm not sure but I hope you were using a condom this time. Plan B is there as an emergency, not every time you have sex.

you need to develop a plan C..

Plan C...

stop having unprotected sex so that u wont be going thru these changes every time she misses a period, because beleive me, sooner or later she will get pregnanat

Could be her period.Could not.Nobody here can diagnose her online!!!

FYI, Plan B could affect her cycle this month and potentially future months.