Pregnancy symptoms

This sounds silly, but what else can cause pregnancy symptoms? Over the past 4 months I’ve had cramping, weight gain, super light periods, nausea with some vomiting, super exhausted, bad heart burn/acid reflux (worse than my first pregnancy), and random food cravings. There’s definitely a chance that I’m pregnant, we’ve been having unprotected sex and just sort of “waiting” like we want another baby but aren’t in a rush so if it happens it happens. However, all the tests I’ve taken over these past four months while feeling off have came back negative. I feel like my mind is just clouded with the thought of being pregnant and can’t process any other reasoning behind these symptoms.. Should I reach out to my OBGYN and see if they can run lab work? Should I go to my normal PCP and just get checked out? Or just ignore it and move on? 🤣