Porn in a relationship?

Stephanie • 19 - Sexually Active - Australia
What do you ladies think about your man watching porn.. I recently caught some surprising internet history on my bf's phone that hes never told me about. I understand its normal for them but cant help but feel concerned and slightly insecure. Ever since I've gone on the implanon I've been on my period for three months and its interefered with our sex life but I feel his expectations when we are able to do stuff has been influenced by the porn he watches. When I caught him he denied it but the evidence was right there.