Feeling ugly during pregnancy

Hi, I’m currently 20 weeks and most of my existing clothes don’t fit me anymore. I also gained quite a bit of weight so far. Feeling quite ugly and don’t know what to wear when I need to go out. I am not sure if I should buy nice maternity clothes which will be outgrown after I given birth or bigger sizing normal clothes which might fit me now but might be too big for postpartum. I want to invest in nicer clothes to make me feel better and yet don’t wanna waste money and space. I also don’t feel confident in what I wear and just feel like an auntie. In addition, I also feel that my face has changed and don’t like my look overall. I know I will only get bigger since I’m only half way through. Not sure if it’s my mindset issue, is there any way to improve my situation now?