Anxiety over Pregnancy

Hey.. I have no where or no one to tell this to because I know I will be judged. I'm having severe anxiety on the thought that I could be pregnant. And it's too early to tell. Last night I felt nauseous but I can't tell if it was from me stressing myself out to the max, or if it's an early pregnancy symptom, which doesn't really help. I keep telling myself that if I am pregnant that it's okay.. but I'm young and pregnancy can be extremely easy for people and extremely hard for some people. I just don't know how to calm myself down or know who I can talk to...