Testing suggestions

Back again after yet another loss 🥺. I’m at the point where I’m just so frustrated and constantly feeling let down. This is our 3rd year TTC and our 4th loss. I’ve had the standard testing done (thyroid, lupus and diabetes), as well as some genetic testing and the only flag has been thyroid which has been stable on medication for over 6 months. Can anyone suggest any further testing to request? I hate how much self advocating you have to do on this journey 😣