To test or not to test: that is the question

I took a test this morning and swear I saw the faintest line. I’m 12 dpo, today I’m congested and having diarrhea (tmi I know) been having excess CM galore! (Literally woke up the other day with a wet spot on the bed and cm running down my leg when I got up) I can’t decide if I should test again tomorrow morning or if I should wait and test again Monday. What say you? If I do test again tomorrow and there is really a line will it be enough time to make it noticeably darker?