It is completely normal for some women to not show a noticeable baby bump at 23 weeks pregnant, especially if it's their first pregnancy. Every woman's body is different, and factors such as the position of the baby, the strength of abdominal muscles, and body shape can affect how prominent the bump appears. Feeling kicks without a visible bump is also common and nothing to be concerned about. As long as you are feeling regular movements from your baby, it indicates that they are healthy and active. If you have any concerns or doubts, it's always best to consult with your healthcare provider who can provide personalized advice based on your specific situation.