Am I Actually Gay?

i'm a gay man, i've been dating men ever since i came out to my family at 15 years old. as of late, i've been thinking a lot about sex with women and wondering what it feels like. i've also been obsessed with watching hetero porn, like to the point where i masturbate to it every chance i get throughout the day. i know that sexuality can be fluid, but i find these thoughts somewhat intrusive? it feels like it's my natural calling to want to fuck a woman and potentially impregnate her. but maybe that's just internalized homophobia or societal pressure? either way, it's something i can't get off my mind lately and i want to know if there are any other men on here who have had this same issue or have ended up experiencing sex with a female.