First time pregnancy?

i am pretty sure i am. this would be my first. i am hungry every two hours. i have to pee more. my last so called period or what i think was implantation bleeding started 5/10/11 my period before that was 4/16? (i think) i now feel a pressure on my bladder and i had been cramping for like 3 weeks it started three days before what i believe to be implantation bleeding. when i stopped bleeding the next day i tested and it was negative but i see my veins through my areolas. my are darker and harder and my husband is saying i am hormonal and i do feel like it. he has been saying that we will get a pregnancy test but still hasnt and i am so irritated that i feel like crying i dont think i am normally like this. i stopped cramping today but like i said it was going on for like 3 weeks and now i am closer to when my next period should be due and my are a little sore and they never are. idk how far along i would tech be. i think when i became prego was the first week of may. it was just diff and the day i stooped bleeding i had a lot of white milky discharge in my underwear. what were ur first signs? do i sound prego? is there a reason for the symptoms besides pregnancy. i know it isnt a yeast infection or and kind of bladder infections i had them growing up so i kow the feeling and there is no sting, burn, itch or smell. it is mostly around where i believe me uterus is and when i move my whole stomach will feel sensitive i wont say crampy but is a little uncomfortable if sitting wrong or something. no meds. no pills. i am 19 i would like to be pregnant and am pretty sure i am but idk why i feel this but i guess since i have taken tests before cause of a late period and feeling crushed by negatives. i feel as if i take a test then i will lose my baby because i feel like there is one thee and i am scared to lose it. i feel like a mother. please i feel so emotional right now. idk if it is because i want a baby so bad or because i am please help anyone else went through this?