14 years olds having sex

Hey guys I feel like I need to let out my feelings, so I'm 14 and most of the girls in my year have had their first kiss and some girls have given head and had sex at like the age of 12! I'm starting to feel really behind everyone and I don't want to be rushed into thing like they where but I do sometimes feel like a loser for not being slightly intimate with a guy. It honestly makes me so annoyed that our generation is moving so fast and I really don't know what to do because I'm honestly sick of my friends talking about boys all the time and kissing them ect. 
I have had many opportunities to kiss guys but it didn't really feel right to do so. Anyway I really don't know what to do and I was hoping I could hear some of your thoughts xx