Pink dress at boy baby shower?

BoyMommy19 • Mommy to one beautiful baby boy born November 2019 💙

My MIL is throwing a baby shower for me in 2 weeks and she said to dress up nice/find a nice dress. Her theme is blue and yellow. I was going to arrange the decor myself with neutral colors, but she said she will do everything so I'm leaving it all up to her since my own mother is also throwing me a shower in October and I got to choose a theme- safari theme. However I have a feeling my MIL will be like "WTF this is a boy baby shower and you're wearing pink??" Plus the decor is all blue and yellow... the resson why I think about wearing this dress is because I already have it in the closet and never used it before. I baught it 2 years ago and it's been sitting here, never used. At the moment I do not have the means to purchase any new clothes or dress. My husband and I are on a tight budget and trying to save up as much as we can for our baby.