Am I pregnant

Christal

Hi I’ve been have pains in my lower left side and I been having a lot of discharge... The discharge is creamy white color... I’ve been trying to get pregnant for about 3 years now and I don’t know if I’m or or what it is I haven’t had a period in 2 months but when I take a pregnancy test it comes back negative. I’ve been throwing up a lot have bad headaches my back is always hurting ... I need someone to help me figure out what is going on???