Pls help me, I did my period on d 2/12, then on d 7/12 I started seein…

Pls help me, I did my period on d 2/12, then on d 7/12 I started seeing clear white, stretchy discharge till today, secondly, my nipple started paining me seriously dis week Monday, but it has reduced now, right now am having severe headache, and all my body hurts inside, pls could dis be signs of pregnancy, an d can I go and do blood test, will it tell now if at all am pregnant?