So I get paid child benefit four weekly and I’m trying to work out the next payment dates to work out our finances and my little girl needs new shoes etc and even though I do work I’m only on a maternity income

So the last time I got paid child benefit was on the 4th of Feb then I got it on the 4th of March (this month) so I counted forward four weeks and got the 1st of April I counted forward four weeks again and got the 29th of April but surely this isn’t correct I don’t normally get paid child benefit twice in one month but if it is will certainly help me out in April. Then I counted four weeks forward from the 29th and got the 27th of May but as this is a U.K. bank hoilday it says online that this will be paid early on Friday the 24th of May. I just want to make sure I’ve got those payment dates correct I will double check with HMRC.