Bc or pregnancy symptoms

So of course pregnancy and birth control symptoms are the exact same.. So what I feel usually on my birth control is nausea and headaches and one time I got extremely dizzy out of no where sitting down. But here’s the issue lately I’ve been experiencing frequent urinating and last night I was so nauseous that it was waking me wake up out of my sleep every smell in my room made me so extremely nauseous even the smell of my boyfriend made me nauseous to the point where I actually had to get up and I had to go into another room just to try and sleep and it was still difficult and I still felt nauseous this morning. I’m new to birth control so idk if this is normal what’s really worrying me is that I stopped taking my birth control about 8 days after I started taking it but then I started using it again maybe 2 days later but I waited a week until I let my boyfriend finish inside me. Whenever the nausea goes away I feel pretty fine aside from the headaches I don’t feel pregnant even tho I don’t know what that feels like I just feel like I’d know if something was wrong or different with my body or maybe I wouldn’t know? But that’s why I’m here plz help me out with some advice or opinions.