Hi Jay-Bee!
Welcome to 'our' little corner!
I think it's a good thing that you have made an appointment to see your gynae. It's the best way to make sure that everything is ok.
All I can tell you is my experience (if you care to bear with me

)
Hubby and I have been trying since Dec 2013 and in July 2014 I told him that I want to go to the gynae. Whereupon it was discovered that I have an underactive thyroid (also something you should maybe look into) and that my eggs aren't getting big enough.
Eggs have to be minimum 1.8cm otherwise, no fertilization. So that's also something to look for. I also had to go and have an HSG procedure done (where they inject ink into the uterus to see if the fallopian tubes are open) discovered that I have 1 blocked tube and the other one is 'iffy' (I say 'iffy' because of what the radiologist said but gynae seems ok with it).
My gynae then prescribed clomid / fertomid 50mg for Dec 2014 and my eggs became nice and big, got a trigger shot (which makes you ovulate at a set time, usually 36 hours after you got the shot) but still, BFN (caused LOTS of tears) which is why I took fertomid again this month (without trigger shot) and we are now waiting. Should it not work, we're deliberating IUI or IVF.
I think we should go straight to IVF but gynae last spoke of IUI. Personally, I think because the tubes are f#@ked (pardon the French) we should do IVF but two things come into play here, 1. Gynae's opinion. 2. Money factor as IVF isn't paid by medical aids.
Anyway, that's my sob story but we're remaining positive that this is our year and this is our month.
To answer your question, it's good that FSH and Estradiol are going to be tested, it checks to ensure that you do indeed ovulate. The blood test results take approx. 1 week though and that week is SO long.
Ok, I hope that helped and I know it sounds silly but, don't be scared. It's as a friend told me, there is so much medicine can do to help with fertility issues so, don't work yourself up too much.
xx