Green, that is wonderful news! I am so glad your little one is growing in there.
Mozzamama I am really not sure about whether the fertility drugs make a lot difference to older women. I think they are helpful if you are not ovulating regularly, and releasing more than one egg at a time gives the sperm more targets to aim for, however, I've heard that clomid isn't great for the over forties, because if may affect your fertile mucus and make the lining thin. But the other drugs, I don't know. The biggest problem for the over forties is egg quality, and no fertility drug can sort that out (otherwise we'd all be taking it), unfortunately. At least if you are being monitored whilst taking the drugs, you may have good timing.
notsoold, sorry to hear that you DS has been ill. I hope he's better soon.
Sparkly, I'm glad to hear things are going well, feeling tired is natural, but I am a bit cross with your DH that he can't be more caring about it.
Morien, I hope your sleep programme works. Insomnia (especially chronic) must be terrible. I think it makes sense to wait til its completed until starting the iui. Perhaps you will be upduffed before then 
Littlepink - nice to hear from you. I have also conceived a few times around April/May, so I have everything crossed that I will be pregnant this time. However, I realise how unlikely it is for me. As I hurtle towards my 47th birthday in November, I am going to have to face giving up ttc. The reality is that I am still actively ttc (charting, opks,timing sex - otherwise I wouldn't be bothering with much sex TBH), so it will be a lifestyle change when I do stop ttc. And I think after doing it for so long, it will be difficult (as well as all the emotional shit I'll go through having to give up my dream of one last baby, and deal with the grief of 3 losses and no chance of a little baby to help heal the hurt)
But, for now, I just have to get on with life. I really would love another baby, but I can't so much about it,other than what I am doing. I suppose there's always the internet clomid in my cupboard. Maybe I'll do it as a last hurrah for my 47th birthday?