Hi @tonii01 I took a quick look at the Nexplanon website regarding their long term birth-control implant and it states that it is only effective for 3 years and must be removed at the end of the 3rd year. So I’d be a little concerned at this point of 4 years that it’s loosing it’s punch!

Here’s the website:
https://www.nexplanon.com/what-is-nexplanon/?utm_source=bing&utm_medium=cpc&utm_campaign=Nexplanon_Brand_BRND_NA_ENGM_EXCT_TEXT_FEMALE&utm_term=nexplanon%20effectiveness&utm_content=Efficacy%20V2&utm_kxconfid=sgaizzyx0&&msclkid=b692b631681118d3329ed57146d5abb8&gclid=b692b631681118d3329ed57146d5abb8&gclsrc=3p.ds

What you’re feeling right now might be your body returning to its normal menstrual/ovulation cycle because of the release of reproductive hormones again. If I were you, I’d consider using another form of birth control in the meantime until you can have that implant removed and replaced with a new one.
Not sure how to do this tactfully, but you might want to mention this information to your OB/GYN. That’s pretty scary if it’s only effective for 3 years and she’s saying 4. I know there can be carryover from the implants but for it to maintain the 99% rating the product has, it needs to be swapped out at the end of 3 years. Let me know how it goes, ok?