I am 25 weeks and feel so freaking ugly lately....?

my stomach is getting larger, i do not wear makeup anymore as i don't feel like going out so why put it on. i have been wearing sweatpants and tee's because maternity pants are uncomfortable, my boyfriend says i am still beautiful and wants to be with me intimately but it is hard for me to when i don't feel like i am pretty enough anymore, is this normal in pregnancy?