Could I be pregnant or just a bad flu?

For the past week I've been having super bad naseua in the mornings that goes away early afternoon i figured its because i haven't eaten anything but when i do eat something it still dosnet go away, i have never had this before i have been having insane mood swings where i am happy one minute then crying the next over nothing, i can be very irritable aswell casuing the littlest things to put me in a shit mood and get annoyed super easily, i have also sunddenly been gaining weight mainly in my stomach which never happens to me i never gain weight in my stomach and never have i have been to the doctor and she just tells me its because of my perivious birth control i was on since 15 i was on the shot depo provera and she just tells me its the side effects of that and coming off it but I've been of it for 2 almost 3 years so i dont know how that makes sense atall she's not really a great docotor she just says that and then trys to push another form of birth control on me and trys to get me to get an iud which i dont want but i am not sure if this is pregnancy symptoms or maybe just a fluke and a really bad flu or stress maybe i am not sure i thought i had a period but it was quite abnormal and normally i bleed consitiantly pretty heavily and can use tampons not a problem but this period i only bled a little bit i would not bleed for hours and then a gush of blood would come i would put in a tampon but when i took it out it was completely dry that lasted for about 4 days,

Could I be pregnant or just a bad flu?
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