Is 23 pdo too soon to take at home preg test?

first a little background- i stopped BC in oct of 2010 and my DH left for deployment in NOV. my periods were irregular until FEB 2011. every 11th-15th of FEB, MARCH AND APRIL. then in May i missed it all together. i should have gotten it may 11. DH came home may 29th and we have been trying since. ( i was supposed to be ovulating may 31) now its june 22 ( would be 23 DPO) and i have not gotten my per yet. is it too soon to take an at home preg test?