4 days late - TTC 4 months

I'm 4 days late according to this app. we've only just been ttc since October and I feel silly posting here, but if not here, where else... I'm scared of it either being false hope and a negative or it being a BFP. stupid, right? I've just always thought I'd have to try long because of knowledge of family history of yearslong TTC, and figured I'd have months and months to really mentally prepare for the obvious possibility I'd really get pregnant. I hope I'm not the only one where this irrational fear suddenly kicks in when there is a chance of a positive? We want a baby but the eternal doubting me is scared for the unknown and irreversible side of having a baby...