morguanadaun

I understand that early bleeding/spotting is normal, but can someone please explain what can cause this? For example, is it soy? Wheat? Dairy? This is my second Whole30 and this is the second time this has happened. When I did the reintros last time, I did not really have a bad reaction to anything but yogurt. I want to understand what specifically is causing the imbalance of hormones (if that is what it is), but I can't seem to find much. Any insight into this would be helpful!