Lower belly pains? Feels like my fallopian tubes?

Hey ladies!

So recently I've been having pain that feels like it's my fallopian tubes? I get hungry then lose appetite then get hungry again. I just finished school, and currently looking for a job.

Would being stressed cause this pain? Or would it be something else?

Last time I had sex was last week with my boyfriend and I'm on birth control.

I have a doctor's appointment next week, but I'm a little skeptical because I've been doing tests to see if I have cancer in my cervix. I've done the test about 6 times already and all came back 'abnormal to cancerous cells'.

Please help if you know!!