Gettin pissed off.

I have a good friend that I talk to about anything I actually consider her my best friend but lately I want to just cut ties with her. She has two kids with her ex husband and whenever I need advice on pregnancy related issue she discounts me and just says I am crazy. I am not 100 percent sure if I am pregnant or not but really needed some help at this moment and she wants to discard me being possibly pregnant. I hate when people get jealous because you are trying to have a life.