Hay, preggy hives are real, mama! A few of us went through the same thing during pregnancy, one friend swore it was hormones acting up, another noticed hers got worse with sweat and heat, pero honestly, best to mention this to your OB at your next check-up kasi sometimes it can be pregnancy-related or triggered ng specific things your body's reacting to now. In the meantime, light loose clothing and staying cool helped my friends, but your doctor can give you the safest options para sa baby.