i have missed 3 periods .. felt sick in mornings and all day and physicaly sick at nights.. tiredness, peein more, lower abdominal pain and tightness ive had a change in my nipples and they started leaking a thick clear liquid 3 weeks ago.. i did a pregnancy test after my first missed period and it ws negative but now im scared as my belly is bigger and if i am preg i dont wanna harm my baby.. i feel as if something is inside me but that only happens when my belly tightens up (hip wise).. could i be pregnant