Not entirely convinced that I’m not pregnant

I’m going to the gynecologist Thursday so I just need some reassurance to calm my nerves. I’m on the pill and he always uses a condom and I haven’t been late with the pill but it’s a low dose and only once his condom slipped off once a month or two ago but we stopped when it did. I feel super bloated all of the time, extremely hungry, constipated, and last month my period barely came. I somewhat bled for a day and it was over. I know I should take a test but what do you think?