Questions ?

My doctor SUGGESTED waiting like a month to try again after my miscarriage on Monday ... but I don’t want to wait that long . I want to try again as soon as I ovulate again .. has anyone ever done this ? Why do I want to try again so soon , it’s not that I’m sad but I feel like another baby should be the last thing on my mind ... I don’t want to feel like I’m trying to almost like replace the one I lost ? I feel almost like guilty and shameful ... also I’m having trouble sleeping ... why me