11dpo so fed up

I have woke up today with the cold from hell and a bad chest i fell pregnant December and miscarried febuary and always remember getting this awful cold and bad chest before I found out ... I am trying my best to hold hope and hope this cold is a symptom and worth it !! but I think i am out got a BFN this morning and a stare at it for about an hour hoping to see something my mind plays games on me and im like... I'm sure I see something but then my SO tells me im crazy i want this so bad but I don't feel stressing about it helps i am trying my best to not stress but I'm stressing over not stressing tried everything this month preseed BD everyday in green window loosing hope been ttc 12 month 😭😭😭💔💔💔