I'm so sorry for your losses OP 
I TTC 4yrs and lost that 1st ever pregnancy on 18th Dec with medical management. A year later, I lost the next pregnancy on 8th Dec! I then had rounds of IVF and lost the next pregnancy too. We have no living children and stopped TTC a few years ago. I still think of those pregnancies, how old they might have been now. Not daily, not even monthly, but being Dec, suddenly thought- oh, he would have been 8 now and she would have been 7.
The way I got through, was thinking about the positive things I did have. I realise this sounds odd, but I assume it was my coping mechanism. Everyone's 'good' things will be different, but some of mine were:
-I lived in a country where I had modern health care and medical management was available and legal
-I have a loving husband and supportive family
-I was grateful that I'd lost most of the pregnancies before I was showing, before I'd told many people and didn't have a still birth or death shortly after birth
-We had no fertility issues ever found, so had never considered we would never have children
Sometimes, having a closure to the pregnancy can be therapeutic. Writing a letter to your babies, lighting a candle and saying some words, planting a shrub/tree etc. I think you can apply for a certificate of the pregnancy loss now, but don't know the details.
Sorry if TMI, but if you did lose the next pregnancy, they should do genetic testing on the products. I did this and the EPU sent it off. You won't always get a result, but I did, which basically meant I had older eggs by then!
Other than Tommys, this site has a helpline if you feel you need to speak to someone, along with helpful advice on their website. https://www.miscarriageassociation.org.uk/
Remember that this isn't your fault and you aren't alone. Happy to answer any questions you have OP xxx