Early labor vs indigestion? How do you tell the difference

My stomach is so uncomfortable esp after dinner tonight. I think it’s just gas again and my hemroids but now it’s 3am and my toddler came to our bed just now so I got woken up and now I’m feeling that discomfort again. We ordered pizza and I literally ate one slice and jalapeño poppers cuz I was craving them and now I’m like was it just too fried cuz I feel like I have to poop but nothing is coming and I can’t keep sitting there cuz my hemroids hurt 😞sorry so much tmi it feels like there’s a pole up my butt

When I laid down to sleep I did feel better eventually but after some burps and farts so that’s what makes me think it’s just indigestion?? At least earlier but now that I was woken up and walked to my toddlers bedroom and back I’m feeling uncomfortable again and that same lower back pain mostly esp on my tailbone and on my tummy sometimes. Went to pee twice and to see if any more gas or poop would come out but nothing.

Now I’m thinking maybe this is more like mild cramps and I should be thinking it’s early labor ? Can’t sleep im just confused and uncomfortable 😣

Also I was thinking maybe it’s more pain on my tailbone because of all the walking and heavy lifting of my toddler all day because I usually have felt that by the end of the day this week its just been worse some night like last night 😳