hi hellraiser
i know how you feel as it took me many miscarriages and years to finally fall pregnant....
some things you might like to do are:
acupuncture which will help sort out your cycle, see an acupunturist who knows about fertility - this will take a few months but will really help (you will need to start taking your temp as well for them - you can buy a thermometer esecpailly for this from boots, its a pain to do as you have to do it the same time every morning, but it will give you invaluable info on your cycle etc)
I would see your gp and ask for all the tests you can get, its good you have sorted out the thyroid thing
there are tablets you can take you make you ovulate ... i would look at seeing a gp who can advise you, but if you can afford it i would highly recommend you see someone private who will assess your cycle, give you appropriate medication if necessary and guide you through this
i wish i had taken more control at 38, but i listened to doctors, and waited, miscarried, waited miscarried etc - finally i had to take control , read as much as i could, and eventually had my daughter, but dont expect the medical profession to help you tooooo much, you need to become much
more informed, but the good news is that there are people and ways out there to help you.
there is a great website fertilityfriends.co.uk where you will find lots of advice