It's a pee question

Since being pregnant I have noticed that I have to change my underwear at least 3 times a day because they get really wet from urine! I've never had this problem but not only that my urine smells really strong!! It's horrible. Well today I was out and I got rashed because it was so wet and I can't help it! I don't know what to do 😞 I'm only 21 weeks does anyone else have this problem?