Question

Ok ladies my cycles are normally 27/28 days. This month it was 24 days. First day was spotting, second day was light and so was the 3rd day. My periods are usually light and only 3 days. Well today I am spotting light salmon color pink only when I wipe. This has never happened to me before ever. I have been ttc for 7 months. Anyways my so was cooking and the smell of meat has made me nauseous. I have taken tests all bfn. Can anyone help me out. This isn’t a topic usually. I know that If it is brown it’s leftover blood from your period. But this is light salmon color pink. Didn’t have it yesterday but have it today.