Abdominal discomfort

K • Married, 3yo girl, second girl in the way

I’m 7w 2 days.

Since mid afternoon I’ve been having here and there abdominal tightness and discomfort. I laid down for 45 mins and eventually felt better. Now working a night shift and feeling uncomfortable but honestly can’t tell if it’s something to be concerned about or gas pains etc. haven’t gotten in to an OB yet so just feeing blah.

Advice?