HELP 16 AND SCARED!!!

I have sex very often with my boyfriend and I’m very comfortable with him. I lost my virginity to him when I was 14 (freshman in high school) and now I’m 16 (a junior in high school) I’ve had one pregnancy scare because I was 2 weeks late on my period and I was basically trying to point out any symptoms of pregnancy during those stressful 2 weeks. Me and my boyfriend never use protection. We have a couple or maybe a few times but he’s very efficient with the pull out method and I trust him because he, almost every time, pulls out a good amount of time before the needing to climax so he finishes jerking off for about 10 seconds. Anyways, I’m not late on my period since I last had mine maybe a week ago but I’ve been puking here and there in the mornings sometimes during the day and in the middle of the night. My discharge is very thick and white almost as if I had a yeast infection but not as bad and to me it smells completely fine and feels fine! Recently a few days ago I wasn’t getting discharge whatsoever and my boyfriend would turn me on and get me wet but I’m usually SO wet when he turns me on and the sex burnt a little and was kind of painful and when he ate me out he was straight forward and honest about my vagina not necessarily smelling fishy but just a different smell than my natural odor and he definitely noticed something was way off as he said my vagina is always clean and been a certain way and he also mentioned I tasted way different than usual almost like a cheese taste and the texture was way different than he remembers and so I was a little concerned and looked up on the Internet what may be wrong with me and of course like with almost anything else vagina related you search on google, they were possible early signs of pregnancy. And yes there were other things it might’ve been but I let it alone and thought I would be fine and then recently since yesterday I’ve been feeling sick and puking small amounts every now and then throughout the day and my temperature is fine and everything seems to be pretty fine except the fact I can’t stop the feeling of nausea... what do you guys think?