Just wondering if it is normal to loose weight in the last few weeks of pregnancy?

My obs does not seemed worried.

I put on 11kg by the time I was 37weeks. (start weight 60kg and 168cm tall).

But have lost about a kg in the last 2 weeks?

I eat normal size portions and even have regular little 'treats'. So I'm really not trying to loose weight at all.

The obs said that overall it's a 10kg weight gain - and that's great.

I guess I worry maybe the baby is not growing like it should. My fundal height has also been stable for the last 3 weeks around 36/37cm.

Look forward to hearing any thoughts.