A faint test line still usually means a positive result since home tests aren't designed to measure how positive you are, only whether hCG is present. Line intensity isn't a reliable way to judge how far along you are.
Next Steps
A blood
beta hCG test will confirm the result clearly and can be repeated after 48 hours to check it's rising normally.
Health Tips
If you get spotting, pain, or the level doesn't rise as expected, see your gynaecologist promptly.