Weird things are happening.

My period ended on the 27th. I have irregular periods so I ovulate after my period and not before. I had sex on the 30th, using the pull out method. For the past few days, I've felt spacey. Even my fiance says I've been "out of it." I use to always be cold. It could be 90 degrees out, and I'd still be in a sweater. Lately tho, I've felt like I've been overheating, and my hands have been swollen enough to where I had to take my rings off. Yesterday when I used the restroom, there was a little light pink blood. Nothing drastic by any means. And I use the restroom more often. Also, I cannot walk straight to save my life, like my equilibrium is off. And I get light headed extremely easy lately. Also, I've noticed I smell a looootttt more things that I didn't really catch before.

Could these things be signs of pregnancy? I feel it'd be WAY to soon to test, which also leads me to think it more than likely couldn't be pregnancy.

I just want some input. Please don't just read this and not say anything. Please, that'd be great.