Unless hazardous oil may cause trouble. I have heard of bleeding but not after the use of essential oils.
All those three essential oils do not have blood vessels constriction or dilation reaction unlesss the content in the oil bottles are incorrect!
These three oils can increase mentrual flow if you use is near to or during menstrual. There must be a reason for bleeding and symptom became obvious after using the oils - this is possible.
ok...i guess i forgot to take my one or two of my pill lately..i am confused too now...it's like period now... I will go to the doctor... thanks Frankincense