Am I pregnant or going through menopause?

I'm 41 have 2 kids, last one 11 yrs ago. Was told I couldn't have any more due to cysts and fibroid tumors. Haven't had my monthly this month. Have noticed extreme fatigue, hunger, tummy seeming to swell and at times feel tight, have tender breasts and am constipated. Thinking am I crazy to think I might be pregnant after all this time, or maybe I am at the age to start going through perimenopause? Frankly too scared to take a test at this point in case I start my monthly in July. Anyone been through same prob?