Hi, you can O while BF but it might take a while - we were not ttc when I was bfing my kids but in both cases it was around a year before AF returned. I have known others to get AF back after 8 months, or even 2 months, so there is a wide range of normal. You might be one of the lucky/unlucky (depends on your POV!) to not get AF for ages - but don't worry about AF not returning yet, it's completely normal.