Yesterday I worked at a NOCIRC booth at a pregnancy fair in Dayton OH and I had quite a few wonderful conversations with people who had circumcised their sons.
I think at that point, you can't change things that already happened, but you do have a chance to leave a positive impression for that person's future. You don't have a personal responsibility to say anything...if you can't say something- don't... but sometimes, what I found helped me yesterday... was to ask the person a question - to invite them to share their experience with me. Then the conversation can be led by their comments rather than my opinions and usually I would have some opportunity to mention some points to ponder, and I also learn a lot about their experience. It helps me to really understand what is going on.
Like: "I am very interested in the informed consent process, could you tell me what your experience was at the hospital where you gave birth... when did they ask you about the circumcision? What did they tell you about it? Did they give you the impression that it was medically recomended?"
I spoke with about seven mothers who had circumcised their first son/s and not their littlest ones. With each and every one of them, I said, "I talk to a lot of people who already circumcised one son and are nervous that they need to circumcise others so there is no difference between brothers... can you tell me- what is your experience with that- have there been ANY problems?" Every single one was VERY HAPPY to tell me that there had been no problems what-so ever (except for one mom who said that her intact little one was afraid that HE was missing something because he did not have that thing on the end of his penis that his big brother did... he was not yet retractable... that was easy to explain.)
I tried to make sure that no one who visited the booth felt bad- I wanted to give everyone info that would empower them to continue to learn and continue to make better decisions. You know- maybe by asking her to tell the story about the consent process- something might click when she has to verbalise it. Or if you ask her about her feelings, you might be the ONLY person who might be willing to acknowledge the negative feelings that she felt. Show concern for her and her baby. You don't need to lay down a big guilt trip. You can lay down a foundation of compassion that might be something that she will remember in the future.
Love Sarah