Nexplanon question?

Since I’ve had my last baby I bled for like 4 months straight no break an i was out on nexplanon the day after having him. I told my dr they just gave me more birth control to “stop the bleeding” it didn’t really help an the bleeding was becoming overwhelming mentally an physically, mind you this was around June of 2024 when I finally talked to her about possibly removing it she said we would talk about it and would set up an appointment to talk about possibly taking it out or other options she set the appointment for August 2025. I hated that an at the time planned parenthood was all booked up an couldn’t get in no where. Now it’s 04/13/2025, the past week or so I been getting symptoms I only get or have gotten when I was pregnant, heartburn, exhaustion, nausea and gassy, and my period was later than usual I have taken two tests on Thursday an both were negative, Friday comes an I still just felt off. Saturday I started bleeding. An it’s Sunday an I’m still bleeding just not heavy as I normally would, I just need help and some answers to point me in the right direction! I have an appointment on Monday the 28th (soonest available) to have my implant removed to see if anything improves just someone help! I am a mother of a 3rd old, 2 yr old and 1 yr old. I’m just tired of not knowing an having all this crazy stuff happening