Ovulating & menstruating TMI

Yaya
Is there such thing as being able to ovulate during af ? 
I used to be able to tell when I was ovulating just by how thick & stretchy my cm was & how much would come out accompanied by pain but now I don't experience that unless I'm on my period which makes me think that I'm ovulating during my period. I don't know if that's possible but whatever is going on it's really painful. 
Have any of y'all heard or been through anything like this ? 

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