PLAN B effects

I had my periods, then unprotected sex right after, and immediately took the pill. my period came again right after that. So in 2 weeks I had 2 periods. Now is has been 1 month and 3 weeks, and my period still hasn't come. I took a pregnancy test, and it was negative. My concern is - is having a second period right after you just had one, harmful to your body - and will this cause infertility? please if anyone can answer, please help!

[Kim1989]

plan b is not a form of birth control and should not be used as such....and thats what your using it as. if you dont want to be pregnant you should be using condoms in addition to birth control.

you did not read the instructions and warnings on the back of the box of pills

it explains what you experienced.

no that does not cause infertility

[thelittlethings]

I had the same thing happen when I took plan B.  It made me start then my next one was late.  I think it just messes with your cycle.

[Mshorty880]

That happened to me too i took it right after my period. I think it just screws up your periods for awhile. Mine went back to normal after a few months and im pretty sure it wont make you infertile or anything bad.