Birth control problems

Brianna • Mommy of 1 TCC for #2❤️❤️

So my husband and I️ are ttc I️ have been birth control free 4 month now and my first period in a year happened the end of October. my dr said I️ will be very fertile after about 2 week being off the implant but still getting BFN😭 is my body still trying to cleanse everything out from bc?