Anxiously waiting

My name is Cinthia. I am 26 years old and TTC baby #2. I took out my nexplanon on the September 17th. My last period was at the August 30th and I am now 9 days late. But, I am afraid the removal of my birth control just messed my whole cycle up. I have been cramping with no bleeding for the last 5 days, my nipples hurt, and have been extremely tired I just want to sleep. I took a test on Saturday and it was negative. Was it too soon? Anyone have a similar situation? I have some co workers who just keep saying, “Cinthia you aren’t going to get pregnant right away.” But, I have a feeling that I already am and just anxiously waiting for a positive test. When should I test again? End of the week? 2weeks? Help!!!