Am i pregnant !!!!!!!!!!!!!!!!!!!!!!!?

have been with my boyfriend for few years and we are very settled and happy and want a baby very much im 27 and he is 30 but i feel we have been trying for sooo long nearly a year and i have startd to feel sick ONLY at night i dont want to do a test incase im not and feel frustrated agin but does my sickness at night sound like i could be pregnant?