Could this be an early pregnancy sign?

According to my apps I’m anywhere between 6 days to two days late on my period (I have an irregular cycle). I’m trying not to get too hopeful because I don’t wanna be disappointed. I’m trying to wait until I’m at least 5 days late according to all of my apps before I test but I’ve got this weird feeling in my tummy. It may be physcosamitic. It almost like a weird “butterfly” feeling or something. The best way I can describe it is when your nervous to speak in front of somebody and your tummy has that weird sensation that’s almost like a slight burning or something. I don’t know how to describe it. But I’m not nervous about anything? 🤷🏼‍♀️. I’m not stressed or anything like that. I mean, I hope I’ve conceived but if I haven’t I haven’t! So idk why I’m feeling like this.