Help me please! pimples! puberty! first periods! doctor!?

hi I'm Hannah I'm 14 and havnt started my period yet..I wash everyday and I was wondering what these pimples are?! I'm going to the dr Friday and will he say anything to do with puberty cus me and my mum arn't that close so it would be really embarring :/ or is it just a teenage thing? pleeeeaae help! xx oh and please answer this too about my first period., I weigh from 85-95 pounds and I'm a little under 5 foot, this is a little long so bare with me..well this is wear it all started- in January I had these signs; bloated; cramps; recently had a little yellowish/whiteish discharge; craving for food; mood swings; pubic hair since I was 10half (below); tender+itchy ; headaches; backaches....but here's the weird part; I havnt had any of these signs since January so is my period ever going to arrive? (not that I want it) approx months, days ect? So please please answer this I would be very grateful! Thankyou and btw bst answr 10 points! Xxxxxx