Anyone have two instances of blighted ovums?

know part of me is pretty traumatized from the past three miscarriages this past year. At 7 weeks I was diagnosed with a blighted ovum a while ago. My amh is .22 so that is very low for my age I am a few months shy of 40. So I'm finding it very hard to be excited about being 5 weeks today. My HCG doubled twice and I go for a blood test tomorrow on DPO 21. I can't help to be worried that this will be another blighted ovum because I'm feeling symptoms but I did last time with the same diagnosis. I just want to know if anyone out there did get two blighted ovum's in a row I hear it's pretty rare but with someone of advanced maternal age the chances go up.