Hay, iba talaga ang katawan pag pregnant kaya possible yan, a few of us mums noticed we started wheezing or having breathing issues na hindi namin experience before, it's usually just inflammation from the hormones and extra weight, pero kailangan mo talaga i-check with your OB or pulmo agad para sure, lalo na kung mahirap talaga huminga kasi baka may iba pang nangyayari na kailangan bantayan for baby's sake din.