Last week i took a pregnancy test and it came out positive. Ive taken 5 within the week and they are still positive. Three days ago i started bleeding a rustic red pink. Its not heavy but its consistent. It doesn't feel or look like a normal period. Ive had cramping not a lot. Mainly in the morning. I made a doctors appointment they said that im probably about 5 weeks (just them asking about my last period) they wanna see me April 3. Is this normal... How long is implantation bleeding?