I lost two angel babies to mmc's, the first 7 and a half years ago, and would have turned 7 on boxing day, and the second 4 and a half years ago and would be 5 on march 26th.
I haven't forgotten either of them and I wont, not now or ever, there is always a part of me that things what if.
I have been referred for grievance counselling, you could try phoning cruse bereavement, they may be able to help
Just know that you are not alone and what you are feeling is not wrong at all.