Lost my rainbow bby 😢😢

Just needed to vent ladies. Me and my hubby found out oct 1 we were pregnant after a miscarriage/bloghted ovum last year in august. I found out this year i have pcos. Started taking metformin for over a month lost almost 40lbs husband lost 20lbs and we found out we were pregnant. We were so excited we even got to see our lil peanut and see the heart beat at 6wks. We were worried cause my hcg numbers were rising slowly. I noticed a week later some light brown spotting and it went away they brought me in for another scan and told me the baby had no heart beat and no growth from 6-7wks. I went back again for confirmation before scheduling the d&c even though i was having some bleeding dr said the baby hadnt passed. Just had the d&c on monday and i feel so heartbroken. I dont understand why this could happen. I requested the dr to send the baby off for testing to see why i miscarried. Im praying there is no issues with me or my husband. All we want is our lil rainbow baby to love and hold and it seems we cant get there. After 2 miscarriages i feel like giving up. So afraid to try again... 😢😢💔💔