Serene,
Don't worry about tummy size, as long as no bleeding and everything is normal during your check up, bb will be healthy and fine.. #2 will show faster cos muscles already stretched.. #1 usually slower..
diorly,
I went to hkg for 2 wks in dec during my #1, think I was abt 6-7mths den. no issue, jus need to rest in between.. Next mth I'm going hkg again, bringing my #1.. Luggage can just pull along ma, n jus put #1 in stroller, den u push can le..