Please some insight!

Sierra • Hello, my name is Sierra. My son is 10 months old now and my husband and I are trying for baby number two 🎉😍
Hey ladies so this is my first month TTC for baby #2. I can't really remember the early stages of my last pregnancy. I have a lot of creamy cm. af has not arrived and is 3 days late. I took a test this morning and it was a BFN. Has this happened to anyone who later got a BFP?