Question? Upset Stomach?

Anyone experience upset stomach as an early pregnancy symptom? Or eating and it just goes right through you?

I feel a little nauseous in the mornings lately and have missed a period (though they are irregular anyway, but recently have been timely for the past three cycles). But these more frequent trips to the bathroom are rather odd! I don’t feel “sick” the nausea just comes in the morning when I first wake up then goes. But the tummy troubles come and go all day. No cramps with it, like I normally have with my period, but different bowel movements than the norm.

Sorry if that’s TMI, but curious before I bother to test.