HELP with figuring out with my cycle & ovulation day

So I've noticed my cycle days are becoming longer and longer.

May - June 28 day cycle

June - July 29 day cycle

July - August 32 day cycle

Since this July - August was a 32 day cycle. Should my ovulation day be on the 30-31st of this month? My apps are saying otherwise. It's giving me a 14 day so my ovulation day would suppose to be on the 27th. I purchased a ovulation strip test to help me out because I'm extremely confused from my app and counting myself.