Ay, friend, a faint line can be tricky kaya ang best move talaga is to go to your OB or clinic para sa proper blood test, that's the most reliable way to know for sure, especially since you've tested multiple times na. Marami sa amin dito na nag-experience ng ganyan, and honestly the doctor can give you peace of mind agad with a proper check-up. Sending you lots of love, let me know how it goes!