1 Doctor agrees with this answer
i dont think you could catch anything with just having had switched undergarments. to be sure you should get checked within 2weeks jus to be sure. If you start to feel a drip of discharge drip out the vagina unnormally, or have a wierd greyish, greenish, reddish odor or puss when you whip to go pee you may have one of those. Also pain as in burning, itching, swelling you may for sure have one... if none of those occur you should be fine...although some men and woman do not have symptoms ever