very faint line on or before expected period?

Ay, mahirap talaga ang waiting game, mama! A faint line before or around your expected period could mean your hCG levels are still building up (so possibly positive!), but honestly it's so early pa, kaya best thing is to test again in a few days with first morning urine para mas clear ang result, a few of us did that and nakita namin talaga ang darker line the second time. The sore nipples, breast tenderness, at random tummy cramps you're describing do sound pregnancy-like, pero they can also happen right before your period, so I know it's frustrating hindi sure. If you do get a positive again, definitely see your OB right away para ma-confirm and ma-start your prenatal care agad!