My BFN

Tested today 10dpo with FMU with First Response and got BFN. Ah well, there's always next month right? That's what I keep telling myself but it's not comforting at all. My 3 yo is asking me EVERY. SINGLE. DAY. when mommy is going to give her a baby brother. It's sweet but also like salt in the wounds at the same time. I know I still got 3 days til AF shows up and that there is a SLIGHT chance that I might be pregnant, but I also know better than to get my hopes up. I've had 4 babies and know my body. If I'm THIS close to AF and get a BFN with FMU, then that's what it is: a BFN. Maybe next month :/