Hot flashes are the worst thing I have experienced so far. Any suggestions on how to combat the sweating?

I am a first timer here, 30 year old otherwise healthy. I thought I had done a thorough job researching pregnancy in the year my husband and have been TTC, but one thing I never read or heard about from friends was the intense hot flashes and sweating. I am on the low end of the BMI scale for my size, never had blood pressure issues, and I generally dont sweat a lot. Since finding out I was pregnant at 3w2d I have been having daily hot flashes, and sweat so much at night that I soak my pillows and bedding through. I can't sleep in the nude since my dad moved in with me recently, and we live in an older home with not great air conditioning. I have fans blowing on me but it does nothing to quell the fire. Any tips, tricks that I am just not getting?