5-6 dpo flu like symptoms

So, to start this post I want to say I have never become pregnant naturally my baby who is almost 9 months was an IVF baby, after 2 years of trying, I recently bought the Ava bracelet to track my cycles since I had unexplained infertility I might as well try 🤷🏼‍♀️, I’ve heard of other couples getting pregnant after IVF win number 1, so I’m 5-6 Dpo and I fell like I’m getting the flu, body achy sore throat and just tired ( and not tired from having a 9 month old lol) has anyone ever felt this way!??? Any response would be greatly appreciated!!!! Happy baby dust to all 💕😘