I'm so sorry. So so sorry. And I can totally relate to not wanting to try anymore.
I experienced 4 losses at the 12-16 week mark. The last two were after my son (second child) was born. So 6 pregnancies and two babies (all with my H). We were tested after our third loss with no findings.
After our fourth loss we moved on. H had a vasectomy. I know that isn't the path all take - and it isn't the bright cheery "keep trying it'll happen!" advice that most well meaning people give.
But if you want to talk about it feel free to PM me. My only advice is to just let yourself grieve and be gentle with yourself before making any decisions. Follow your own heart and gut.