Hi there I had tests for recurrent miscarriage over 3 years ago.
The details are a little hazy so hopefully someone else may be able to give you some more precise advice but from memory I firstly had to give doctor details of the miscarriages I had had (how many weeks pregnant I was, amount and duration of bleeding) and details of my cycle (how long, any pain, amount and duration of bleeding during period).
I had several blood tests to check for various things, really sorry but I don't remember exactly what they were for but I am sure there were some tests for clotting factors as well as other things. DP also had a blood test as did I to look for any genetic factors.
I was totally utterley convinced that there was a definate medical reason for my miscarriages. I sort of hoped this was the case so that we could move onto ways of preventing them- but everything came back fine.
I then had another miscarriage and this time the doctor also did some bloo tests to look at hormone levels- FSH and LH I think. This was related to looking at the relative quality of my eggs and my 'reproductive age'. I also had a scan. The result of all this was that I had polycystic ovarian syndrome despite having few of the typical symptoms. Doc explained that there can be an elevated risk of miscarriage if you have PCOS due to egg quality and some hormonal factors (I think this is a controverial view TBH).
He prescribed me metformin and three months later I fell pregnant and this resulted in DS. Its so hard to say if the metformin helped (under docs advise I took it for first trimester), I don't want anyone to think its a miracle cure.
Anyway- sorry if have gone on too long just wanted to give you my experience. IMO there is every chance in the world that you will go on to have a DC.