first i've never missed a period....it has now been 12 days overdue..i did have sex with a condom, but my period still didn't come....i took a pregnancy test last night and it came out negative....i have recently began to eat more healthy.. raw veggies, fish wholegrains etc... and i've also been taking a herbal colon cleanser and womb tea to rejuvenate the womb... i am not stressed, i haven't been sick nor do i have weight problems...i've been very happy...i'm 27.. i do get irritable and cramps like i'm getting my period, but still nothing....what could be delaying it?