I got a bfp an hour ago..??????freakin out?

I just took a test cuz i felt like it not at all expecting the anwer I just got that has sent me int panick mode. I had a leftover test from awhile back and i felt like taking it. dont now why really.... but apparently my body knew and wanted me to know... its an immediate BFP.. and my face pretty much went frozen and white. i couldnt even think. i ran to my mate and showed him and he pretty much had the same reaction... i couldnt stop shaking and crying... i just made a dr apt for tomorrow. im not sure whats going to happen. I have 1 child. but its been years since i had to do all this. and me and my mat dont get along very well and have been fighting non stop. now im not sure how this is going to happen.... has any of u been thru this type of situation?? I have been starving and dehdryated for the last week and i usually get that with pms. but also queasy and very tired and not wanting any coffee! thats weird for me. out of nowhere 1am the other night i wanted cheetos. so badly.... but didnt have any. im pretty scared right now..it was a dollar test.