You poor poor thing - my heart really goes out to you.
You should absolutely allow yourself a good cry - you have to allow yourself time to grieve.
I dont know if anyone else remembers the film Pollyanna with Hayley Mills - but in it she used to play the 'glad game'. Bascially whenever anything upsets you - you have to think of an upside to it.
I think in your case today - you should allow yourself a good wallow - but I have found the glad game a good way of coping each day.
My day yesterday went as follows:
Bad - had to go for my day 21 blood tests - realised i am now officially 'one of those women that have fertility problems'

- glad - that I have a good doctor who has sent me for the tests v quickly - so that I will at least know what is wrong sooner.
Bad - my friend had a little boy on Monday and I feel soooo jealous

- glad - that my friend and her baby are healthy.
Its has been helping me to focus - and not let the sadness take hold.
Take care sweetheart.

x x x x x