Hi yasmine,
yes it is infected. Keep cleaning it regularly twice a day for the next couple of weeks. I have 3 piercings in each ear and I have had them for 13 years, but if I forget to clean the back ones they start oozing, yet the other 2 are fine without cleaning. I tried a belly button piercing aswell but it just wouldn't heal even after 4 months so I took it out, some people take well to piercings, others just don't have any luck with them at all. A lot depends on what type of metal the piercing is made of, don't ever buy the cheap $2 stuff because they will infect your ears every time, you need to invest in either sterling silver or 9ct - 24ct gold, you will have much better luck in keeping infections at bay with these types of metals.
Take care...
.::suzy::.