14 month old only wants yogurt

My 14 month old is teething, he has had 2 teeth cut this week and one more coming through. 2 of which are molars. As a result, he’s been extremely fragile (needy etc) and isn’t eating much. He will only eat yogurts. Usually he eats fairly well so it’s odd. He refuses purées (always has) so yogurt seems like our only option.

Is this normal? Am I creating a bad habit letting him have more yogurt? Or is it ok and he should go back to normal soon?