11 days late

ok ladies need some advice! I haven’t been pregnant for 14 years, and when I was pregnant I had no idea ( I know sounds odd) my older sister thought she was pregnant and wanted me to take a test with her ( Why I don’t know) well long behold with no missed period no signs or anything I was the one pregnant! Well fast forward 14 years me and my husband have been Married 8 years and decided if it happens it happens (8 years of trying not to get pregnant due to between us having 3 girls) there is a 16 year age gap between us. I am currently 11 days late and have been on time every month for the last year or so. My period use to be late a day or 2 every month. I have Hypothyroidism but no other medical problems. I took a test about 3 days go but it was negative. Today when I use the bathroom there is a very light pink tent when I wipe but not much. Not enough to were I need to wear a liner. Do y’all think I should test again in the morning or give it more time? Or does the light pink tent mean anything? I’ve never had that happen before. Any advice is greatly appreciated thank you all!