Ok need advice please

My fiancé and I are very sexually active almost daily and we get adventurous so in saying that a month or so ago I noticed porn on his phone and he admitted to looking at it saying it's just something he does sometimes...he also admitted to taking care of business if u catch my drift...I know most men do this at times but it really bothered me I could totally understand if he was deprived but he's not. So he apologized and never wants me feeling upset so it wouldn't happen again...we'll now he's erasing his history on his phone but I know he's looking up things...not open but like pics of actresses in panties or hot body workout stuff and this still bothers me...I'm 28 weeks and still have sex nightly and he gets oral at least 1-2 times a day y does he have to look at other females? And am I making this out to b bigger than what it is? Please be honest