Excited but confused...

Tempa • BFP 6/17/18- Due 2/17/19❤️🙌🏻🎶❤️ Suffered miscarriage 8/12/17 😞👎🏼☹️ Married 11/26/16 😍💍👰🏻🤵🏻😍

Hubs and I have been TTC for 7 months. AF set to come on Wed of this week but I decided to test this morning just for the heck of it. Tested first thing and got a BFP!!!! 😁💜Around lunch, it seemed as if AF was starting. Light bleeding and mild lower back pain. I tested again at 2ish... also a quick positive. Still light bleeding (more than spotting, less than a regular AF) as of 8pm. Called the dr and she mentioned to test again in the AM as some women have light "periods" the month of conception. Anyone experience something similar??