How early have you experienced morning sickness?

Hi!

I’m trying to think about if I’m overthinking things seeing as I’m expected to get my period in 3 days, I’ve been super nauseated the past week. I have thrown up twice. I’m a nurse and obviously dealing with certain things (like emptying someone’s catheter) makes me gag so bad and I have never had problems other then the last time I was pregnant but I feel like that was more around 6 weeks. I don’t know what else it would be though. The only other thing I remember is around the time I was ovulating I had bad cramps for 2 days and don’t remember having cramps like that during ovulation. So I’m just wondering how early have you ladies experienced morning sickness and if it’s even possible to have it this early OR if it’s all in my head lol