So I've had sore boobs today and yesterday and I'm feeling a bit short tempered.

Last time I was pregnant (early miscarriage...was only 17 and had only just found out) these were the only symptoms I got. I never missed a period, got sick, got cravings, put on/lost weight etc. I want to find out asap this time but I've no clue when to do it because we don't just have sex on my ovulation day so I could be 8,9,10+ weeks pregnant without knowing like last time or I could be 2 days pregnant.

Surely if I'm getting a symptom then I should be far along enough for an ept?