On the progesterone supplement issue, I was being followed by my fertility specialist for the first 12 weeks, and she is the one that put me on the progesterone supps (around 6 weeks I think). When I later saw my OB, she confirmed that I needed to stay on it till 12 weeks but I could quit after that (after that, the placenta takes over and all should be fine hormonally).
Everything we heard from our docs (this is in the US) and read online indicated that progesterone supplementation cannot stop a miscarriage IF the mc is related to factors other than hormone levels. However, if you have an otherwise healthy pregnancy (i.e. no genetic issues, solid implantation, etc.) but your progesterone is just a little low, they can definitely help bolster the pregnancy in that case. I believe that is what happened to me. Of course I can never say for sure if I really needed the supps, but the FS put me on it as soon as they picked up the first borderline reading, and my levels definitely came up once I was on the supplement (the vaginal suppository kind, which is much gentler to your overall system than the oral kind). Both she and my OB checked the levels after I was on the supp to be sure it was working. So I would have to disagree that the supps "make no difference" - what they may have meant is just that the supplement can't save a miscarriage that is related to other factors, which is true. If you ask for them try the cream or the suppositories because I hear the oral pills have much worse side effects. I was already so sick I did not want anything that would make it worse, so the suppossys were a Godsend.
Anna, specifically to your question - I did do extensive research into the question of whether the supps can hurt anything, if you happened to not need them, and the answer was no. So I would not hesitate to explain your concern and ask for them. Just tell the doc you would feel better even if she thinks they can't help, as long as they can't hurt. Do you know what your level was? My doc said they like it to be above 15 and when my second check came back at 12 (had been 18), they put me on the supplement.
And thanks for asking about my Dad! He's doing okay so far. he quit the chemo, and has seemed to feel a lot better (well, some better anyway :-) since that got out of his system. But of course I worry about how fast he'll go downhill from the continued advance of the cancer. He's losing weight at an alarming rate and basically bedridden

(( We will see him again this weekend so I'll be able to tell if he looks like he's gotten much worse since we saw him 2 weeks ago.
On the exercise - my doc said walking is best, because as pregnancy progresses your joints get more and more loose, and you can injure yourself more easily than you usually might (even if you're in great shape to begin with). I have not done much over the course of this pregnancy just because it's been all I could do, between first tri sickness, second tri busyness and now third tri fatigue and ligament pain, to get through each day's normal activity LOL! But I hear anything moderate, especially anything you are already used to, is fine to continue. It seems to be a "do whatever you feel up to" type of thing, just don't go crazy. For me, I've started to have the SPD ligament pain, which they basically say can only be aggravated rather than helped by exercise, so I'm sticking to necessary activity only for the duration.
Whew, I've written a novel!! Can you guys tell I've really been missing having some other 35+ ladies to discuss pregnancy with LOL!?
Hope something I said was helpful! Happy New Year's Eve all! Lucy, we're staying in. May go to dinner but too exhasuted to party LOL!