Jbrd, ((hugs)) honey. I am sorry you have to go through this worry, but I'll bet it is just due to the numbers (especially age) on the page rather than anything definite. It is a bugger the harmony didn't work. I hope they're doing the second one for free.
I understand your reluctance to have an amnio or cvs. I felt the same way when we had high odds of trisomy 13/18 with my last baby. I was sent to a fetal maternal specialist in the big city - a professor, and I am so glad my dr sent me there. Before performing the amnio she did a very,very thorough scan (at 17 weeks) and was able to tell us that our baby looked perfect (definitely not trisomy 13 or 18, which is what we were concerned about), and when I asked if I could skip the amnio, she agreed that the scan was enough. I am not sure if they'd do that in your case. I guess if I'd had to have the amnio it would have settled any doubts we had or confirmed the test results.
How did the scan go? You said you were having another one and I am guessing you would have had it by now? I've got everything crossed for you. 
Calibee, hello, it is lovely to hear from you. I think the IUI is a great idea, at least you can be trying even when DH isn't there.
Green, glad to hear that your appointment is soon, it is very exciting.
As for the CBFM - how frustrating to have 'highs' consistently - not very helpful - would opks be better? It is nice to hear that acupuncture has helped your AF, it did the same for me.
Jass, I don't think I am having an annovulatory cycle - I got a + opk, and my temperature has risen - looks like quite a normal chart to me, just ovulated a couple of days later. Timing was just like last month, so now it is a case of wait and see. After my first chemical pregnancy it took two years to get a bfp, so I am not exactly optimistic
If I am lucky this month the due date is 21st Dec (exactly a month after the due date of the CP) - I'd love a little Christmas baby...
Mozza, it is good to hear from you. When will the MRI results be ready for you? How far along are you? Are you able to enjoy the pregnancy at all? I know it is a terribly worrying time for you, I just hope you can enjoy it in some way.
Looks like the sun is out today, so I shall try to enjoy it. Having year 10's period six (last one of the day) will be quite a challenge, they are the lower ability kids, some with a really poor attitude, and they are difficult. The other day one of the boys said to me (after, admitedly, I made a sarcastic comment to another kid), "You're a real smart-arse aren't you Miss?" My reply:, "No Lachlan, it is called wit, but you might find it a bit hard to understand. And by the way, there are better words to use than 'smart-arse'".
Ahh the joys....