Hiya, what it is, is that I was due on my period on the 27th and still haven't come on my period yet, I have been having bellyache like I am confused on my period but still haven't shown, my boobs ache a bit, I'm usual a big eat but haven't got an appetite lately. I'm having really bad mood swings and feeling tired a lot lately. Also having a bit of head ache. Just wondering for some advice. I'm 18 and have been with my partner 9 month. Thankyou