Anyone run a marathon in first trimester?

Erin

I ran a marathon yesterday at 9 weeks, 4 days. I snacked, sipped, walked, and ran. It was my slowest marathon ever but I finished feeling good. I was prepared to stop early if I didn't feel well at any time and averaged a heart rate in the 140s. Although I feel like I made the right decision for myself I can't help but have some anxiety about miscarriage risk and research is limited. Anyone been in a similar situation?