hello there tracey2010
i can sense your anxiety about starting your first cycle...the first one is always a bit scary as you dont know what to expect. (i presume this is your first cycle?) I have done quite a few stimulated cycles now and started off on a low dose fsh 150 then gradually increased to around 350-400 as i didn't respond very well to the lower doses. I imagine they will monitor you carefully with that dose, am sure you are in good hands.
just want to wish you all the very best...i hope you are one of the lucky ones who fall first go then you wont have to worry about all this again! let us know how you go, when is your first scan?