I'm currently 26 weeks with my first baby and wanted to know is it normal to feel movement in 2 places at once?

We were told only 1 baby but my step mum said sometimes twins can hide (she was a result of this when her mum was told there was only 1 baby all through pregnancy)

I keep feeling baby moving/kicking on both sides on my stomach at the same time. Is it normal? Would he just be stretched across and kicking and hitting maybe?

I tried to Google it but only came up with twin articles so thought I'd post here and see what others have felt.