am i what he really wants

Sarah

so i will try to make this long story short... basically me and my current bf have been together since august of last year. he turned 26 in feb i turned 22 in march. i have a daughter 1 and a half from my ex husband (i was with him for 4 years married for 1, we seperated in may of last year until i started talking to my current bf at work) he has 4 children (9,7,5, from his first baby mom and a 3 year old from his second) i am currently 26 weeks pregnant with our child... its a boy 💙 anyways me and him started talking quite soon after me and my husband split up, we hit it off instantly!!! he always felt like he was a rebound and like i wasnt over my husband... really i wasnt because he left me but at the time i told myself that i was over him. after he asked me to be his gf (i said yes) i made a mistake and slept with my ex.... (side note i have never cheated in my life and have always been proud of that, its not the person i am at all) well anyways my boyfriend forgave me and we have been working past it... well recently ive been catching him watching porn on his phone... let me give you guys a little information on what we look like first of all.. i am white 5'3" and weigh about 125 before pregnancy.. he is black and 5'9" about 165lbs.. ive only dated black men most of my life until i met my husband, he was white... my current bf has never dated a white girl before me... so i never catch him watching porn i just see the videos saved to his gallery that he downloads and deletes later... he doesnt watch people have sex to get off.. he like to watch other women that look nothing like me to please himself... even if i am in bed next to him.. he says he is attracted to me but sometimes i doubt that.. i feel insecure because im pregnant and i am the first petit female that he has been with.. all of the other females are curvy and thick and beautiful af like i feel like i cant compete with that.. once i even caught him watching a video WHILE we were having sex.. like WTF .. do i have anything to be worried about or am i taking things too far because im emotional?