Am I cumming or...?

My boyfriend gives me good head, well for as long as I know. He goes all over my clit with his sharp fierce tongue and I like it. He does that for a good id say roughly 8 mins before I start grabbing his hair and he knows I want it harder. So he traps my whole vagina with his mouth and starts sucking, that’s my favourite because I think that’s what makes me ‘cum’. So he’s suck in my clit unless I can’t take it because it’s no longer pleasure and it Just gets really sensitive and I need a break before he can suck it again. I’m not sure if that means I cum because it feels like I’ve reached my climax. If anyone understands anything please tell me if you think this sounds like cumming.