I don’t like my son’s name

My son is almost 4 months and I do not like his name. My partner and I choose the name, however after he was born and persons started calling the name and making comments I started disliking the name. I attempted to speak to my partner about it and he shut me down and said I could change the name but he would not be going through the name selection process again and he likes the name we choose. I tried speaking to him about it again and all he did was ask why I do not like the name. After telling him the reasons he said I could change it but he is not partaking in changing it. I haven’t been able to call my son’s name. I’ve tried but I just don’t like it. I don’t even want to tell anyone his name when they ask. I feel like I am resenting my partner because of this among other things since giving birth. I want to change the name but I really want my partner to agree with the name change but it seems he will never agree. I need advice on what to do.

I asked my MIL advice regarding changing the name and she said she would leave it because her son likes it( in the beginning she made fun of the name and asked why we choose that name).