in love?

hey guys so me and this guy that is like my boyfriend but isn’t bc i don’t like labels have been talking for like 3 weeks we have known each other for 4 years and he’s been tryna get with me since freshman year but i finally gave him a chance. this guy literally worships me, he ft me, we play video games together, he compliments me all the time, and he just shows sooo much effort. yeah we have already had sex like 3 times and it was sooo good i can tell he really cares for me🤷🏾‍♀️. he told me he almost said i love you during sex which caught me off guard bc i have never been in love. how do uk if ur in love? and when is it to early to say it?