Almost to my second trimester but nausea is getting worse instead of better!

I’m 12 weeks and my nausea is officially at its worst

, i thought it was bad Before but WOW I had no idea what was coming for me, I haven’t been able to eat anything for 3 days and I’m gagging all day long (I’ve been forcing myself to eat but it’s not much) and I’m miserable! Is it normal to be this nauseous this late into my first trimester? I thought the nausea was supposed to subside by 14 weeks? I don’t know what to do anymore I tried extra b6 like my dr told me to do but nothing is working and I’m getting worse!