have any of you taken a hpt and it been negative and you were pregnant???

ok my symptoms are extreme bloating in lower stomach (cant even suck in my stomach or put pressure on it) nauseous all week three weeks ago but this past two weeks it comes and goes, hot flashes, i was in a dead sleep and smelt fried food woke straight up and got sick to my stomach, iv done that twice now. im tired and can take naps but at night i wake up at least 3 times. hate the smell of food. loss of apatite only can eat a few bites and i have to make myself eat. sore breasts not sure if its from the hubby being to rough or not, breast seem heavier and a slight pulling sensation in them. im not sure if this is all in my head or not. iv taken two hpt and both were negative. i have irregular periods so its hard to guess at. this last weekend i got a very watered down bleeding that i could only really see when i wiped, it lasted like a day and a half and went away.im judging off of that, that im late. i can get my period anywhere from the 15th to the 25 of every month , i get dizzy and weak in the shower. last night iv had a terrible lower back ache and couldnt sleep. i feel emotional. but idk the tests were negatve so im wondering if it was all in my head. also iv had two vivid dreams in the last week. i never dream so i guess im adding that as a symptom. me and my hubby have been trying to conceive for like 5 months. i want a baby so bad, but im wondering if my body just wont let me.... have any of you taken a hpt and it been negative and you were pregnant??? has anyone else had a similar story to mine??? i was on the depo shot for three years as a teenager and im wondering if it could have made me infertile?