i do not go to porn sites yet i keep gettin porn in my email what can i do?

It means the spammers got your email address from some places.
You can try a few things.
1. Get a new email address and don't give it casually to anyone except for your good friends. Don't expose your email address when you post messages on public web sites.
2. If you need to keep your current email address, you can try to use spam killer. Yahoo, Gmail, or Hotmail have some kind of spam filter, but still there are lots of junk mail (including porn) that got through.
3. As to how to protect your own email address: for web site owners, please don't put your email address directly on your web site. Try to use form mail instead (so that your friend or visitor can send messages on-line without know your email address.)
If you have to display your email in some way, try some tricks to avoid those auto email collectors which craw all the web sites to grab your email address for spamming.
e.g. If your email address is [email protected], show it like this "king at kingsite dot com"

Hope the above little tips ease your pain a bit. :-)
By the way, never buy from the junk mail ( otherwise, you support them and encourage more.) If you spot the junk mail by its subject or sender's name/address, delete them directly without opening them. Resist the temptation, let's fight the spammers together.

Do not open any of them. Just check on which ever Mail is undesired or anonymous and click on "spam". You will permanently block the Mails from that address.