Just calculated my period and found that i am 6b days late

i have just calculated my period and found that i am 6b days late. for about 2 weeks i feel a little sick, like just the other day i woke up at about 6 or 7 in the mornin an was almost vomitin in the toilet. because i live in a bar right now, what doesnt shut till 3am, i sometimes start to feel a little sick around 1 or 2. i dont always be sick however. also over these two weeks clothes that did fit me are now really tight an im feeling really fat like badly bloated, almost like i have drank 2 litres of fanta. i have been gettin bad acid feelings to, or heartburn. my breasts are tender one day then ok the next. like a little bit tingly at times. im hungry alot more. i have found that im goin the toilet alot more but i dont know if thats just me livibg in a hot country. also during these two weeks one day i have been incredibly thirsty an the next im ok. i have cramps like im gonna come on my period but have not yet come on for 6 days. i took a test about 2 weeks ago but it said negative. i dont know if that test was just to soon to tell or maybe im not pregnant. so i would just like some advice rather than get my hopes up, buy a test an it says no.