On the night before my wedding I slept withy best friends husband, he came over to drop something off I was alone (a tradition in my family) and we ended up have s** on the living room floor, soon after our wedding I became pregnant I’m 90% certain the child is not my husband’s. I feel unbelievable guilt and shame we never did it, or spoke of it again and I haven’t cheated before or since that was 12 years ago. I have been close to telling both my friend and husband a 1000 times I can’t keep living like this.