Bleeding/spotting

I remember i had spotting at 4weeks pregnant.. (no idea i was pregnant, i tot it was menses blood).. so i went poly to check at first its was positive.. and they give me folic acid.. but then i've been facing spotting for 2weeks.. and then i went to nuh a&e and the gynea say it was completely normal.. how long will i bleed? Its depends on ur body... but thanks to god i can see the heartbeat.. so gynea told me to continue with folid acid. But better consult doc.