i havent had a period for six weeks now, i am feeling sick at night occassionally, i am getting headaches, eating food i never used to, im tired all the time and feel like napping during the day, my stomach seems to be getting bigger, my breasts are sore and enlarged and my nipples seem darker and bigger, i took a pound shop pregnancy test on the day or day after my period was due but it was negative, could i have taken it to soon