Recurrent loss after living kids

Hi, I hate that I’m here again.

We have 2 beautiful children I love so much and I’m incredibly thankful for. They are 3 and 1 and I love them dearly. My son (3) is from a previous relationship.

Now with my current husband I have had 3 miscarriages- one before our daughter and 2 after. At 6 weeks, 4 weeks, and now 7 weeks (twins)

What can I do now? What happens next? My husband doesn’t want to try again but I don’t feel like our family is complete and don’t know how to make peace with being done. If we do decide to try again can I pursue testing as to why I keep having losses? I’m 24 and healthy and know I can carry a child to term.

Sorry for the word vomit. I’m just heartbroken.