That 怀 should be Hwai1

As for 挂 should be Gua, which is thinking off.

Let me ask some senior.

Kia is 仔 isn't it ?

I remember 十月怀胎 is Tap Guay Hwai Hai

I still stand that 怀 is either read as Hwai or Ywai depends on different pronunciation.

Kua could be 裹

Hainanese uses lot of ancient wording such as Chopsticks as 箸 du & Egg as 卵 nui.

So can't use more modern language like Cantonese to interprete.