Loosing weight

I know it's normal to loose a little weight in your first trimester due to not feeling up to eating and sickness etc but iv lost a stone and a half in my 8 weeks of pregnancy I'm a little worried I'm loosing too much my partner keeps trying to get me to eat more I just can't help it everything I try to eat turns my stomach I have snacked on fruit most days or veggies so I am eating some stuff it's just not putting weight on is this normal? First pregnancy 😄