If im pregnant,i hav all the symptoms but my test came out negative and i got my period but it was irregular and the colour was different brownish,pinkish! Im tired lately and my nipples are sore and they itch. I also suffer from naseau and vomitting,i use the toilet more and have heartburn and my tempreture is higher than usual..... Cud i be pregnant?

You very well could be, the test isn't always right. You could have been way too early in the pregnancy for the test to pick it up. So try again in a couple of weeks, and see what the test says, if it is negative but you still think that you are pregnant, then see a doctor, pregnancy isn't something to mess around with.
Good Luck,
Michelle