What tests need to be done before pregnancy? And what about the hope of pregnancy?

Patient's question:

I have already asked this question online. Please don't blame me for asking again.
After suffering from an ectopic pregnancy in February 2005, I had a uterine lavage in the second month, and the doctor said it was successful. In October 2005, I miscarried at 32 days of pregnancy for no reason. After the doctor performed a D&C, they didn't do a pathology test, and to this day, I still don't know the cause of the miscarriage. What should I do?
Should I just rest for six months and then try to get pregnant again, or should I get checked before trying to conceive? What tests do I need to take? And is there still hope for pregnancy?
Thank you, expert!!

Doctor's answer:

Hello, according to the current description of the situation, it is recommended to first conduct a chromosomal test to see if the miscarriage is related to a chromosomal disorder.