My Asian Mom vs. Asian Dad

I find that a lot people have a better relationship with their mom versus their dad. For some reason, it is the other way around for me. Even though I am a girl, I feel like my dad understand me more than my mom. Whenever I talk to my mom about things she doesn't know when I am for real and when I am joking. But when I talk to my dad about things he understands. I am a girl and currently going through puberty and my mom should probably know when I have cramps and don't feel like doing anything,  but I don't think she gets the pain. She went through the same things and should know how I feel but I don't think she does. When their is a special occasion and I don't feel well because it is my time of the month, my mom makes me go and when I am in a bad mood, she thinks I am trying to embarrass her. On the other hand, when I tell my dad my stomach really hurt (I don't tell him the reason) he lets me stay home from those things. I do not like my dad better than my mom but sometimes he is a lot better to talk to.