Heated places in pregnancy

I went to see a basketball game when I was 6 weeks pregnant and I sat down on a slab which was being hit by the sun directly..and I must say it was pretty hot sitting on it but I sat there anyway as I got up I could feel my bottoms where hot. The next day I started bleeding and lost the baby..could it have been sitting on that hot place that caused me to loose the pregnancy? Haven't had any peace and I feel that's what caused it and am blaming myself for being careless 😔