supposingly getting my period. I had sexual relations back on febuary18/19 or so in which im not so sure if that was in the middle of my cycle. today is march 21st. iv got nothing yet. my cycle does get screwy once in a great while. last one had really been thrown off, it took almost 5anda 1/2weeks before i got another one and when i did i think it was the heaviest one i ever had, i did have a thought of being pregnant because i had been trying,my partner has ejacualated in me numbers of times.but we never got pregnant. were not together now . im just wondering ive been feeling the symtoms of my period, mostly my cycle gets here about 2wk and about 6 dys after i ended last cycle. Is it just stress? can u also feel sympoms of pms andmaybe still be possibly pregnant?