Mollygirl, BG has pretty much said it all. I've been knocked down with bad OHSS twice, and had a milder case develop on the third stim cycle - which was the first where I got to transfer and gave me the baby I have due in 7 weeks.

The only thing I will add is REST. Make sure you are eating, too. The problems arose for me when I stopped eating (it hurt too much) or when I did too much (caused more fluid to leak).

I will also say - don't be scared if they suggest not transferring. It really is in your best interest. I spent a week in hospital with the second round, and it was honestly the best place for me. When I got mild OHSS with pregnancy, it hung around until about 10 weeks before it even started to resolve and I still had painful ovaries at 15-16 weeks. A bad case of OHSS and pregnancy means you are looking at significantly longer in hospital, abdominal drains and worst case scenario is termination to keep you alive.

That's the scary side of things, though. I've been there three times and survived... I can give a more detailed and sensible post after work if necessary.

BW