OP as you'll have seen two miscarriages is not uncommon. I've also had two in the past year,.
We are deep into private IVF now (so both IVF pregnancies) as well as an IVF chemical pregnancy and numerous natural chemical pregnancies alongside.
I also have a healthy four year old from a straight forward first pregnancy.
I have had all the private tests. And the news is: nothing to report, which is common.
Under discussed on here is that the no 1 reason for miscarriage under 12 weeks is that the embryo stops developing because it was not genetically normal.
you'll see posters talking about mourning / regretting the baby that would have been, but honestly that is a misleading (and I think unhelpful) way to see it: it wasn't that there was a viable baby there that got lost. Rather, that embryo wasn't going to make it all the way to baby and that's why there was miscarriage.
This is, honestly, part of pregnancy. It's where the 1 in 3 / 1in 4 pregnancies end in in miscarriage stat comes from. It also varies from person to person. So for some people, if they have an abnormal embryo it will stop developing so early they won't even know they conceived. Others it will carry on a bit longer, so positive pregnancy test, but then the embryo stops developing a little while later.
The upshot of both is the same, but the second is emotionally and physically harder to bear.
IVF has given us an insight in to this process: the rule of thumb you are given is to expect 25% or 1 in 4 of fertilised embryos to develop to the 5 day point (when the embryo is transferred into your uterus). Now, our day 5 rate is way better than this. 75% 3 in 4 of our embryos makes it to day five.
This seems great but it is a false picture - realistically the ratio of genetically normal embryos (that will get all the way to baby) is still around the same. So my miscarriages so far are explained by this. And actually if our abnormal embryos dropped out faster we'd be able to find the normal, viable ones faster and more easily.
And our journey to a second child is about how much resource we have to find the one normal embryo that will go all the way to healthy full term birth.
Repeating miscarriages where the embryo is normal are a different story, but that isn't what's going on in first trimester miscarriages for most people, most of the time.
So consider the tests, but honestly, the chances are when you have them on the NHS or private things will come back normal.
It's worth tracking your cycle - is that all normal? If so it is a good indicator that everything else is likely to be fine and you will get there.
The good news is that the biggest determiner of a healthy, normal embryo is age. For both you and your partner. At 30 time is on your side, though looking at both of your lifestyles and making improvements in diet and exercise as set out in Starts with and Egg should also help (the genetic material in an embryo being 50/50 you and your partner).