Can’t help but worry (8 week concerns)

Kiara • ~🥰Momma to 2🥰~

I’m having all kind of issues today, and I’m trying to be trusting of my body and I’m hoping this just means my baby is growing. Light period like cramping for the past two days. Moderate back pain, and I’m exhausted today, and my zofran is not working my stomach feels like I’m on a boat in a stormy sea. I’ve read that cramping in early weeks is normal, but when do I get concerned (I hope I don’t have to) but just in case I’d like to know some red flags.