Is being gassy an early sign of pregnancy?

Lupita • married an anime junkie like me. Love to watch 90`s sitcoms, and draw, paint, cosplay. my fav 50"s sitcom is i love lucy. my fav disney princess is jasmine. looking to make newfriends.
I've been really gassy for the last two days. Could this be a possible early sign of pregnancy? Been getting stomach pains and feeling bloated and gassy. I took a pregnancy test four days ago and it came out negative.