to much sex ?

we stop using any kind of birth control a few years ago and for the past five months we have been really trying TTC I've charted checked cm did opks everything with zero results i have very irregular cycles they have ranged from 29 to 31 to 26 days this last one was 23 days so it seem like no matter what I can't catch that big day my husband said its just becoming a chore and driving me crazy so he said that starting the day after the last day of AF which is today we should just have sex every day till my next AF is due he says we have to catch the big o day that way what do you all think dose this work better or should I just keep doing what I was doing