I got a faint line on a test yesterday and today. I’ve been cramping for the last 3 days. How long are cramps supposed to last. My period is in 5 days and I’m started to doubt that I’m pregnant. I shouldn’t be cramping this long. My first pregnancy, I don’t think I had cramps. I knew I was pregnant when I bled for a hour then it went away. But no cramps. I’m feeling like I’m on my period. No bleeding or spotting! Just period cramps and faint lines.