Feeling frustrated 16dpo (one month after iud removal)

Rocio • Mommy to Our Angel 👼🏽 10/21/2018 & Our Rainbow 🌈 2/21/2020

I'm feeling so frustrated with af not showing up. I'm currently 16dpo and 4 days late! I'm always very regular. and I've taken 3 tests that all came back BFN. I'm just really sad now because I got my mirena out on July 31st and I started bleeding on August 2nd, the day I was due for my period. and I had a regular flow bleed until maybe the 5th day. that fifth day we had sex and really big clots came out. Then I spotted for 2 more days. I would consider that to be my period. and here I am... still waiting. Feeling sad because I came upon a thread where women were saying they waited 3 months before getting a period or how their bodies are all out of whack. I noticed that was from women who had the iud for years and never had a period. I had mine for 8 months and had very regular periods. every 28 days, like my periods had always been. just sitting here freaking out cause I just want my period to come now if all I'm getting is BFN. has this happened to anyone with the iud??