ovulation date?

my period start on 13th june i'm a 26day cycle,my period normally last for 4 days.when will i ovulate?

[udbe2]

hard to really tell unless you use OPK's, have ultrasounds done to monitor your cycle however if you are textbook and will ovulate halfway through your cycle on day 13 than you will ovulate on 25 June.  

I'm on a 28 day cycle and I sometimes will ovulate on CD12 and sometimes CD13 confirmed by u/s and opks.    I don't always trust that you ovulate on exactly halfway point of cycle.