I just had a baby, i'm 6 weeks postpartum i just started bleeding again, it's very heavy. crazy heavy..is this my period? it's bright re

Likely: It is likely to be the resumption of your periods. If the bleeding persists more than 5-7 days, it would be prudent to see your doctor. You may wish to take oral iron supplement and multivitamin to avoid iron deficiency. Unrelated to your question: If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD. Practice safe sex. Get HPV vaccine.