Things happen, and Plan B is a great solution to avoid a pregnancy you are not prepared for.

The Plan B pill contains levonorgestrel, perWebMD.

This is a synthetic version of the hormone progestin.

A box of Plan B pills

If you experience spotting, you may be afraid the pill didn’t work.

Planned Parenthoodalso expanded on the idea that spotting can occur after taking the pill.

Spotting from the morning after pill is usually a reddish or brown color."

Woman holding a pregnancy test

Of course, the only way to know for certain is to take apregnancy test.

If you are concerned you may be pregnant after taking Plan B, know that it is uncommon.

Spotting is a rather common side effect of taking the pill.