I am 14 and a virgin and my periods are irregular...for 2 months it came on the 4th! is it going back iregualr?

i dont kno why but im scared...ive always bin irregular and now i dont kno wat to do...im scared!!! for october thru december it started on the 4th and now its januaray n it didnt start yet...i have all the symptoms of my period and im just waitin for it to come...my are sore and im getting tiny little cramps and im bloated all the time ooo n im always tired too....is this normal? ive had my period since 5th grade