Why does my penis head becomes weird shaped during intercourse, why ? -

FYI - I am circumcised Im not a person who has sex that often, but i have noticed lately that when I have sex, the head of my penis turns weird as if it has adjusted into the shape of the condom, and it hurts too. so i have to wait till my penis turns flaccid. Am I doing something wrong ?

What you are doing wrong is paying attention to what your penis looks like inside the condom. If you stretched the condom over your hand, it would look weird too. Or if you used saran wrap.