The sperm will die when it comes in contact with the spermicides. To get to your uterus, the sperm needs to get past the spermicides. That does happen, which is why spermacides are not to be used alone.

haha I wish I used spermacides so I could explain it to you fully. Clean up is normal.

You know, if after using the spermacides you don't like them, then you could just buy condomds with spermacides. I suggested spermacides under the assumption that you didn't want to use condoms. But if you ARE going to use condoms then you can just get condoms with spermacides-- less money and then you wouldn't have to worry about any possible weird clean up.

Plan B is only 85% effective.

You took it within 72 hours which gives you the best chance for prevention after sex. The fact that you took it the same time as someone else who ended up in that 15% failure rate doesn't mean you will.

Try to relax, if you miss your period then test.