Is it normal to always spit my saliva?

Hi. I’m at 10 weeks now and up till today. I can’t seem to swallow my own saliva, I’ll usually spit. Cause I feel more nauseated when I swallow my own saliva and sometimes when I do swallow it, it creates a mucus or phlegm form and it makes me want to gag. Any idea if this is normal? Also I’m a first time mum to be. So I’m not quite sure. Do advise.