Can u get pregnant with no period

Just wondering. I’m 3 weeks pp and still bleeding but have been since labor. I read that some get there periods 6-8 weeks pp and some don’t get it for much longer than that. I’m breastfeeding half the time so I’m just wondering if I don’t get a period can I still get pregnant? I haven’t had sex yet and won’t until 6 weeks and going to start bc next week but just a question.