I'm on day 5 of my cycle and I used a digital ovulation test fully expecting a negative result, but it was positive. I have 30 day cycles, so a positive ovulation test on day 5 just seems wrong. Should I be worried? What's going on?

Baby #1 BFP 6/10/2011-EDD 2/19/2012-DS Born 2/10/2012!
:'( CP BFP 1/6/2013-EDD 9/19/2013-CP 1/9/2013

Baby #2 BFP 1/3/2014-EDD 9/12/2014 -DD Born 9/10/2014!

Baby #3 BFP 7/8/2018-EDD 3/17/2019-Team Green!
Re: Early LH Surge
7/30/12 - B/G twins born at 33w4d due to PPROM
:'( CP BFP 1/6/2013-EDD 9/19/2013-CP 1/9/2013
Love it! I'll be sure to "hump it out" the moment DH walks in the door
:'( CP BFP 1/6/2013-EDD 9/19/2013-CP 1/9/2013