HI Liquorice,
In answer to your questions, I didn't take a month out and did the embryo transfer straight away (after 5 days). I had some OHSS but it wasn't enough to prevent embryo transfer (all those eggs I ate!). I have complete faith in Dr Doo, so just ask his advice and he will tell you what he thinks is best. With me, he wanted to try the embryo transfer straight away. I had both take but one died later. Thrilled for your blastocysts are progressing nicely, its such a nerve wracking time.
I have been doing both progesterone shots (am on 100ml a day although you will start on 50ml) and the utrogestan pessaries (2 x twice daily). The progesterone shots are painful after a while and I now have to really grit my teeth. I have hard lumps where I inject and bruising (and I don't bruise easily). Because the shots are oil based you have to massage them (something I wasn't good at) but even injecting alternate days doesn't ease the discomfort, and it can become quite painful. I forced myself to do it as the alternative was to go to Dr Doo's every day for the jab which isn't possible. I was also on pregnyl after I lost no 2 to prevent miscarriage which is easier but still intramscular, and neither of the injections slide in or inject easily. For this one, either get your hubby to do it (mine would have fainted, I tried to make him watch one day and he got really squeamish) or just grit your teeth and think about the good it is doing for you! There is no way around it, although if you can get to the clinic every day for an injection that might make it easier if you find it difficult to do yourself.
I think I did a pregnancy blood test 10 days after - basically when I was 4 weeks pregnant. I did the embryo transfer on a monday and then I did the blood test the following friday, or it could have been the wednesday. Basically you do it quite soon after, again a nerve wracking period to wait.
On another note, I am very new to all this baby stuff and as soon as I was pregnant they asked me which hospital. I said Matilda but they said I needed a couple more choices in case I couldn't get in. Also apparently Matilda won't take you until 9weeks and a scan, that said, Dr Doo is resident there so he gets some priority. If they ask you for a hospital, don't feel pressured into booking something so early. I went for Adventist as an alternative as you can register straight away, but suddenly they wanted a deposit, so I opted to wait for Matilda, had confirmation the other day I am in. Due mid march.
I haven't had experience of any other doctors but I feel in very safe hands with Dr Doo - and even though sometimes you have to wait for an hour plus to see him, I don't mind that. I would definitely use him again.
Also, before I forget, all the progesterone will make you even more nauseous than normal apparently, and if you have twins (if both embryos take) than that will make it twice as bad. In the early stages with both, I was crippled with 24 hours nausea, it was completely debilitating and as soon as I lost no 2 things got much better. I am/was an endurance athlete (although don't look anything like it now!) and I can honestly say from an endurance perspective, getting and staying pregnant is harder than any ironman training I have ever done!
Fingers crossed for you for the next couple of days.