STD ?

Hi ladies. Unfortunately had unprotected sex about 2 days ago (I usually am much smarter then that), and now I have this discharge TMI🙈 I’m just going to assume the worst and say STD (I’m getting check Wednesday at my gyno appointment). Wondering if anyone has had anything similar? I’m assuming waiting until Wednesday will be fine as well but also just want to check if I should get seen sooner. Needless to say I will not be making this mistake again any time soon lol. Thank you!!!