Weight concerns

Ab

So I've been having a really hard time eating and keeping down food lately because of pregnancy nausea. My doctor said is common to lose a little bit of weight during the first trimester but I'm concerned that it's really hard to eat and keep it down, I've been weighing myself everyday and I've lost a pound a day almost this entire week. My next appointment is on sept 8 so I'm not sure what to do until then