So I put it down to baby brain but, I split my Levemir 24U at 9am and 28U at 9pm. However in stupidity did my 28U this morning so and extra 4units than normal.
It's only 4u. It's during the day. I wouldn't worry about it too much. Keep an eye on blood sugars, be conservative with bolus doses, keep hypo treatments handy, don't run any marathons.