Breastfeeding 7month old & late period

Hi! So my almost 7 month old started solids about 2 months ago and then this past month increased night feeds to every 1-3 hours at night and it’s been exhausting! My period is 6 days late I believe. I’m on the mini pill and I’m great about taking it on time. I also started exercising daily about 6 weeks ago. Do you think the late period is hormonal? Typically I bleed a time or two for a few days in the middle of my cycle based on my 7 months old eating cycle but I don’t think I had it this Month 😬 we are not trying for a baby obviously lol