princess I am in a very similar situation. I am 34, have one DS (4.5) and have been TTC #2 for just over a year. I had 3 mc's in 10 months. One at 11.5 week, one at 5 weeks and the last one was in March, a MMC at an 8 week scan. I honestly feel the same as you; utterly utterly done in and exhausted and winded with all the trying and the losses. I totally relate to life having been on hold while all this has been going on. And I feel so lucky for DS (also conceived easily and textbook pregnancy) and guilty for wanting more.
I have been on a forced break from TTC for the last few months while we have investigations. And I have welcomed the break and felt so much better for it. I think emotionally and physically I needed it. I also referred myself for counselling via the GP and that has defiantly helped me work through my thoughts about all this. I have also focuses on some other things in my life, that have been put on hold, such as applying for a new job which starts next week & thinking about moving house. I just couldn't focus on a new baby anymore, and it has been a breath of fresh air to think about other things. It felt positive.
We are coming to the end of our investigations though, and will be TTC again in the next couple of months. I am beginning to feel very anxious about it and have considered giving up. But it's a difficult decision and I can't quite decide to stop or to carry on! I'm in a wierd limbo. I'm going to bide my time until all results back and see how I feel in a couple of months.
I imagine it's all still a bit raw for you. Give yourself a bit of time, take a break from it all while you have the investigations; the way I saw it I could have the investigations and see how I felt when they were in. And it's taken a few months so it's been a good amount of time to try and get my head round it all.
Look after yourself, spend some time with your family, book a nice holiday/weekend away if you can. And don't put any pressure on yourself. Lots of love 