So scared- IB?

stephanie • Gave up on TTC after 4 yrs

TTC for over 3 yrs. Told in Jan SO sperm is dead. My cycles are usually 30-35 days. I'm cd23 (5dpo according to the app which is usually correct) every other time I go p I have little bit of brown discharge on the tp. None getting on my panties. Since Jan 2017 I've only had 1 cycle that's been 24 days(june2017) I want to test but I just know it's my period early and it'll just be a let down. I dont want to tell anyone since I'm guessing its AF coming 9ish days early. What do you think.