Pregnant or not pregnant that is the question.

Patient: Hi, i have all the typical symptom s of pregnancy, swollen yet madium hard egg shaped belly, dizziness occasionally, going to the loo more, cravings and addiction to certain foods, i’ve gaind half a stone in a couple of months which is rare as i have been the same weight for over three years and spots which i never get. but i do mot show up on blood or water tests as positive and my doctor seems to avoid going near me to check me out or even looking at me until a blood test reveals a diagnosis for her. if i am pregnant i would be due in january. is it possible and what else could it be?