My boyfriend accidentally touched the side of my boob, was it an accident?

So I’m 20 and my boyfriend is 22. We’ve been together for a month now and the most we ever like to do is to make out intensely without sexual contact since we both have talked about sex and we both want to do that later in life cause we’re just comfortable with that at the moment. So today I was at his apartment and we were watching tv while cuddling, and during one of the commercial breaks, we started making out and then I lied my head on his chest while his hand stroked the left side of my hip up to my rib cage. At one point, when his hand was coming back up, he ended up accidentally going a little up too far touching the bottom side of my boob. I’m thinking it was an accident cause when he realized he went up a little too far, his hand sort of froze like deer in the headlights for a couple seconds then slowly moved his hand back down acting as if it never happened. Rather that or didn’t know that he touched a little bit of the side of my boob, but I doubt that was the case cause my boobs are a size 36C, so I’m thinking it was more of an accident since they’re pretty big, but I’m not sure whether or not it was an accident. Reason I’m asking this is cause again, he’s told me he doesn’t want to do stuff that would make the both of us uncomfortable, which would included touching like that. What do you all think? Do you think it was an accident?
My boyfriend accidentally touched the side of my boob, was it an accident?
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