E
Echo
As someone who in the end was not lucky enough to have children, but had several miscarriages, I understand that this is a potentially very sore point. Some days, as you say, it's fine, but suddenly it just isn't. I know you are not yet too old to adopt, and that you don't yet know if you'll go down that route, but I would definitely tell her if it was me. She can word things differently. Equally, you may choose to work on your feelings about it with her, but when it suits you. If you are noticing it, I would say it probably is an issue for you, but you know best how you feel, of course, and how you've reacted at other times.