hi,

my periods used to be around the 6th of every month for the last 2 years all of a sudden for the last three months the date changed to the first of every month and has stayed that way for three months (Jan, Feb, Mar). now its the 2nd of April and have not gotten it yet. I had sex with my BF on the 17th, 23rd, 24th, 27th, 28th all the times he did not cum in me, he pulled it out and the released. I took a pregnant test and it came negative. I am worried as to why the periods are delayed. Is there a chance i am pregnant is it too early for the test? and most importantly i have been having the PMS symptoms  (pain in breast, bloated up feeling) for the last ten days with lower back pain for the last 2 days, usually when this happens i get the period but now its taking for ever. Please advise.