coincidence?

Little back story. I had my first mc 5 years ago & thats when we found out my hubby had low sperm. I then had ivf and on my first round I got my boy who is now 2. Frozen from first round I had another go & was pregnant with twins but had a mc. Then 2 frozen failed.

Throughout all this I was eating good, taking vitamins & exercising.

A few months ago I got really sad & depressed thinking oh no I have to start from the start again with injections and stuff and its alot of money as I have no frozen embryos left. I started eating bad, no exercise, no vitamins & low set drive. I'm normally hornier than the hubby. We have had unprotected sex for the last 5 years and never once fell pregnant until now. Anyways I ended up having another mc at 6 weeks... was it just a coincidence that when I fell off the wagon it all happened or would it have been the change in lifestyle that caused the mc 🤷‍♀️ any tips & tricks for low spern partners. Thank you xx