@Countrygirl220 That's fantastic news about your scan. I really hope this is it for you.
So I spoke to the auto-immune doctor this afternoon and I've got a lot of information to work through.
He said that in cases of unexplained recurrent miscarriage like mine, where nothing has come up in any of the normal blood tests, there are three potential causes to look at.
The first cause is a high number of abormal eggs, which is very likely in women over 40 and very unlikely in women under 30, but as I'm 34 I'm in that grey area where it could go either way. He said the good news is that at my age I almost certainly still have some good eggs left and if it's that and we keep trying eventually we will catch one. The bad news is that there's no treatment for it other than PGS testing, which we would have to go abroad for because it's illegal here. 
The second cause is a high degree of incompatibility between the mother and father's DNA, apparently there are tests for this but again we'd have to go abroad and the science isn't very advanced yet and treatment options are limited.
The third cause is auto-immune issues and there are various different meds we can try and ongoing medical trials. He said he doesn't think that the lab that analyses the endometrial biopsy tissue will be back up and running until September, so it looks like the recommendation will be to start trying again straight away and do Ovidrel and intralipids this time. But that's TBC - I'm seeing the gynaecologist again on Monday for an ultrasound so we'll discuss it then.
He also wants to know exactly how thin my endometrium is because if it's like 3-4mm thin then he would recommend taking the tocoopherol and pentoxifylline but warned that it can take 6 months to get the desired results, whereas if it's like 6-7mm thin then that's probably not the cause of my miscarriages. I'm currently taking the tocopherol because why not, it's only vitamin E, but not the pentoxifylline, so I'll need to discuss that with the gynaecologist on Monday.
He was quite blunt with me and talked about women who have six or seven miscarriages or more and how it's just a case of trial and error and you have to only change one thing per pregnancy otherwise you'll never know what eventually worked, and if all else fails or you have several D&Cs and the embryos are all abnormal then you find 10000 euro go and do IVF with PGS testing in Spain.
Yikes. I mean, I guess I wasn't expecting him to say, yes, here's a magic pill and next time you will definitely have a healthy baby, so in a way it's good that he didn't sugar coat it, but he was very direct about it all.
So I guess we are trying Ovidrel and intralipids. And probably no pred for now.