Unstable period after giving birth

Hi mummies. I’m FTM & would like to ask if anyone has same experience like me. I gave birth to my boy on mid Jan’21. After that I had around 6 weeks bleeding before it stop for a week. After that I have another heavy bleeding which I assume my period has come back altho that time I’m a bit surprised I got period quite fast since I’m breastfeeding my son. And now I haven’t get my period & has been late for 1 week. I had test pack & it was negative. Have anyone has same experience like me. Got period previous month & the next month not getting it back? I saw from google that is quite common due to hormones that support breastfeeding. Thinking to see gynae maybe by end of month if I still haven’t get back my period by then. Thank you 🙏🏻