This is lengthy and I posted in another topic but nobody responded so I figured maybe people would to a respond to a poll...Please help

So first of all I know that I have messed up my birth control in the past. I had taken pills out of order, but I continued to take the pill every night at the same time. I noticed for the pass four or five months, my periods and spotting have been lasting from 7 days to two weeks long, but they were never heavy - probably a low to medium flow. I hadn't been cramping either. I figured that I would just wait until my annual gynecologist appt. and discuss switching to a more effective dosage or another birth control pill, but I had to cancel that appt. (Set for last month). This month, I got my period for 7 days, bled more than usual, and I had cramps that were more bothersome than usual. Also, THESE PERIODS HAVE BEEN OCCURRING WHILE I'VE BEEN ON THE ACTIVE PILLS. I called my dr.'s nurse yesterday and told her that my period had ended after 7 days and asked if she wanted me to just start a new pack of the birth control, but she told me to finish my back of birth control and take a pregnancy test before my appointment next week.

Just for peace of mind, do you all actually think that there's a possibility that I could be pregnant or that it's even worth worrying about??? I have had sex like 5 times since I've had this issue but I've never had a month without a period/spotting. Looking at my period logs, I noticed that I had been under a lot of stress/anxiety/depression around the time my period started changing.

I'm going to take the test, but I am currently visiting my parents, where I have lote privacy, so I feel like I can't take the test until I leave in a few more days. However, I'm so anxious right now I can't wait that long so please help!!