I know exactly how you feel, im feeling the same i find out friday morning, have the 1st appointment available 9.30 am, so feel like i have just 2 days to go, knowing that i'll either be crying or feeling totally wonderful inside is enough to make me not go, i also have the added pressure of my hubby having a vasectomy at 1.30 pm friday too, so i may be a complete utter mess, this is my very last chance and im terrified in truth, can't stop feeling sick worry and i'm so tearful 
I wish you luck hun, thinking of you 
xxxx