Sayang, bleeding after positive test lines memang boleh happen dalam early pregnancy, tapi ini bukan sesuatu yang boleh ignore, you really need to see your doctor or go to clinic/hospital ASAP to check if everything is okay, especially since it's on and off. A few of my mum friends went through spotting early on and turned out fine, but some situations memang kena check properly. Don't wait, go check your HCG levels and get a scan so doctor can confirm baby is in the right place. Better safe than sorry, kan?