My husband winded me, that night I mc

Was 9 weeks, heard a heart beat at 7 weeks. Have had pregnamcy symptoms up until the day it happened. Had an accident yesterday morning my husband winded me, it was a stupid accident where I went forward and he went back, neither looking.   That morning I started to spot, at 7 that night, cramps and clotting began... Been to the doctor today, and they confirmed there's no baby there anymore. Obviously this is devastating (taken us over two years to fall pregnant) I'm trying to explain that these things happen and it probably wasn't what happened that morning. He's convinced otherwise.  I'm feeling awful for him, and confused myself. Have no one to talk to.