Signs of a pregnancy??

So my period is almost never late and so far its currently a day late. I'm not trying to think anything of it and give it a few more days before trying to test. I've been trying to think if I'm feeling any different. Long story short do you think that feeling really fatigued and gassy could be signs of being pregnant? I'm never this fatigued or gassy at all during my period and these are the only difference I feel.