Better sex ed needed?

Ive seen quite a few frankly worrying questions on here. "We had unprotected sex, is there a chance I could get pregnant?" YES OF COURSE!!! 
I don't know if sex ed in schools are sometimes bad or people just aren't paying attention but gosh....I'm 14 and I've never been in a relationship but I feel as though I know more than some adults in a committed relationship.
Maybe sex ed is getting better as of recent years?
Have any sex ed stories and comments? Leave them in the comments!
(Btw I live in England)