Need some words...

I am pretty sure I am currently going through a start of a miscarriage. I had an ultrasound yesterday after experiencing spotting. My hcg levels are really low for where I should be. The ultrasound only shows a yolk sac and maybe a fetal pole but was hard to see considering it was so small, measuring at 6 weeks. I should be 8 week 5 days however it doesn’t look good. I didn’t even get the ultrasound, a big indicator when my doctor knew it wasn’t good. Before anyone says I could of ovulated late, I had a really dark dark positive 4 weeks ago so that would mean I tested a bfp at 2 weeks pregnant which is impossible. Looks like I am going through a missed miscarriage. Anyway, I am sad but finally accepted that this will be my 5th miscarriage and my 2nd consecutive one. I just can’t believe it! At this point I need something to hold onto and the only thing I have is to try again. I worry because I am 40 and the chances of this happening again could possibly be. I can’t keep going through this. Has anyone had success getting naturally pregnant at 40 after a miscarriage? How long did it take you to conceive after your miscarriage? Anything you ate, took, did to help?? I just need some words to help me through.