What Do Pregnancy Symptoms With HPT Negative Post Tubal Reversal Suggest?

Yes, I had a tubal reversal back in October. I have taken a pregancy test and it was negative but I am having several signs that I could be exspecting. I have mood swings,fatigue,headaches,hot when I am always cold, eating everything even sweets and I usually dont like sweets. my stomach looks so bloated not to mention I am peeing more. What should I do?? I dont want it to be a tubal preganacy by chance.