Hi @LuluF91
I'm in a similar position. I've had 4 chemical pregnancies within 6 cycles. I'm currently under a recurrent miscarriage clinic and am doing tests to see what's going on.
I had a termination for medical reasons beginning of the year and had to have a procedure to remove retained placenta 8 weeks later. Since then, I've had these 4 CPs. I kept thinking with the first one my lining just wasn't sufficient. With the second one I thought ok, my body just wasn't ready. But now after the 4th I'm convinced that something is wrong.
The consultant I'm under has suggested to take part in the CERM trial which is a clinical study to research a condition called Chronic Endometrisis, a chronic inflammation of the uterine lining which can prevent the blastocyst from fully implanting, causing an early loss. It's doesn't really have any symptoms.
I had never heard of this before, yet it all seems to match with what's happening to me. Where other people including some professionals wouldn't encourage people to test early/until missed AF, I personally think for me this is the way to get the treatment I need. If I wasn't testing early, I wouldn't be aware that there was an issue. (Or I would as in two of these CPs I went past my AF due date but then started bleeding a few days later...)
There can of course be other issues like progesterone insufficiency (isn't in my case because I had been given progesterone for the last cycle).
I guess what I'm trying to say is, everything might be normal or might not. Maybe speak with your GP to see if you can have some blood tests done or he referred to a RMC for further investigations. Most GPs only offer box standard blood tests whereas RMCs go into much more detail like Vitamine insufficiencies, sticky blood etc.
I don't mean to scare you with all this information, but I know that I have been through the pain of having this happen 4 times now (no issues with the first two pregnancies sticking!) and am grateful for any information that can help me bring closer to another child.