Alamak, tu Braxton Hicks lah, normal sangat at 32 weeks, tapi kalau frequently mengeras sampai berjalan jadi susah, kena check dengan doctor just to be safe ya, especially since first pregnancy kan you tak sure what's normal. A few of my mum friends had the same thing and doc told them to rest more, drink lots of water, and avoid standing terlalu lama. Jangan worry sangat, but don't ignore it either, better safe than sorry!