4-5 DPO flu like symptoms?!

Kristina
Hi there! So we are 4dpo I had my LH on Thurs and Thurs afternoon I started getting a stuffy nose. We have BD everyday since July 24th! We are really hoping this is our BFP this month! Anyways here I am 4-5 dpo and I am having flu like symptoms along with slight back ache and running a low grade temp at 99.0! I am praying this is a good sign! We had a Chemical Pregnancy in June and I am just hoping this is our Rainbow Baby! Have any of you experienced this and actually ended being pregnant? I have 12 more days until AF is due!