EVEN though it is called the morning after pill, you can use it up to 5 days after unprotected sex.
It is most effective within 3 days after sex.. You had 3 days to use it where it is MOST effective.
You can take both pills at once if you want to.. I work at an abortion clinic, we also provide PLan B and offer birth control services.
You only took it 2 hours late, and while it may be 'okay'... IF I were you, I would get another dose to take.
Planned Parenthood sells plan B on a 'walk in' basis, and it is much cheaper than a regular pharmacy.
GET ANOTHER dose, just to be on the safe side.