Age gaps !

I am 25 my parter is 36 on Sunday . 
Is it likely because he is older could take longer to concieve ? 
I know I ovulate. 
We have sex normally every day or every other day and have done so for last 8 months and nothing. 
Both have a child from previous relationships although I've been pregnant more than that but suffered missed miscarriages and miscarriages  (not with my current partner tho )