Need some encouragement

Hi so according to glow I’m supposed to be 8 weeks although my OBGYN said my weeks may be off. I went to the ER last Thursday and they said I have a threatened miscarriage and I was measuring 6 weeks. I did my follow up today and she said I’m still at 6 weeks so my baby isn’t growing and the heart beat is 76 when it’s supposed to be at least 100. Anyone went through or going through the same thing? What was the outcome? Anything that will help (like I know I need to exercise and I plan on drinking more milk)

I just feel so defeated and then my Husband and I may get divorced. Just so stressed out and I feel like that’s why this is happening. Feel free to comment or DM.