Breakthrough bleeding or implantation bleeding

Already posted about this, but wanted to give an update for comparison. Been spotting for a couple of months now, around 6 months or so. Been on the pill for 2 and a half years now and only experienced this problem this year. Got checked and found out my cervix is sensitive due to the pill, but not the cause of spotting. I have to get an ultrasound. Kinda just worried, because this one looked different and I’m scared it might be implantation bleeding, because it happened a week before my period and day 22 of my cycle. I read that’s about the time you get implantaion bleeding. It’s also a bit darker than my usual spotting. Following pictures are TMI. First picture is the first day of the spotting and second picture is the one today (3rd day of spotting). Experiencing a litte cramping tho, feels like normal cramping instead of the faint one they describe for implantation bleeding. No back pain. Didn’t miss any pills either this month. I take my last pill tomorrow, Saturday, and start my period on the 27th of November. Is it possible I’m preggo, even if I didn’t miss any pills? I was late once tho about 5 hours as I forgot the pills in my hotel room while on vacation.