I deeply regret getting my son circumcised

My son is now 8 months old, happy and healthy. Before he was born my husband and I discussed circumcision and I did not want to do it but he did. He is circumcised and he insisted that it is cleaner and healthier. I disputed him with a few articles and facts but overall felt I was probably in the wrong simply because I don't have a penis. I figured he knew best being that he is a man. I told him if he was going to do it he had to go with him and be in the room and he agreed. The day after he was born they took him and my husband went with him. I cried the whole time wishing they hadn't gone. My baby was fine when he came back and my husband claimed that he didn't even cry. His penis healed properly and we've had no issues (thank GOD) but I can't shake this feeling of guilt. I read things online about parents that watched the procedure and how horrible and traumatizing it is. I just can't believe I let it happen. I am typically an informed somewhat crunchy mama. I am very protective and consider myself to be a good caring parent. But this mistake is a HUGE one that I just can't get over. I also feel very resentful towards my husband and get angry about it often. Does anyone else feel this way?? What can I do?