Irregular Breathing?

Chellezy

My husband is worried because hes observed me sleeping and was noticing irregular breathing patterns... Telling me sometimes its shallow and calm, and then suddenly deep and short like Ive been running and gasping for breath.
He sais its been going on for several nights in a row and it concerns him.

He understands that a baby can put pressure on the diaphram and make breathing a little harder, but Im only 23 weeks and not that big yet,..
I have no history of asthma or any other breathing problems and I feel fine during the day.
Should I be worried and go tell my doctor?