Cannot get starting date of next month

[Cito]

I have been tryting to get the starting date of the next month.

The expression "next month" is interpreted as "same day one month later", not "first day of next month".

The expression "this month" is interpreted as "first day ot this month", so I tried "one month after this month", but this cannot be interpreted. Similar expressions like "14 days after this month" or "2 weeks after this month" do not work either.