Late ovulation

Erin
Quick Question for all you successful ladies! 
​This cycle I didn't get my lh surge until cd19.., normally I'm around. Cd 15/16 .. My cycles average 28 days although some have been. 31 
​Question us did anyone have a later then normal ovulation and still get their bfp ? Or should I consider this.cycle a write off ?
​We did bd every other day during fertile window and then three days in a row once positive lh surge 
​Thanks ladies