could I be pregnant? flu like symptoms anybody have?

Okay so there is a possibility that I could be pregnant. My period has not came at all, my last period was literally at the end of January going into the first week of February. I haven't seen it since, however one day about 5 days ago I had the SMALLEST amount of light brown discharge, it's was so scanty like literally a thin line of it ... but today and yesterday I have woken up in pain, my throats is sore, my body aches, my eyes hurt, head hurts, I feel so weak and sick, & I have a nasty cough as well as phlegm. I've been nauseous as well, it's too the point to where I'm crying bc I feel like complete crap. Could this be a sign that I'm actually pregnant? Being that I've have no period at all ...