Historically DH has totally whiffed on my bday, barely anything or completely last minute and very obviously not a priority. He's not as bad with the kids. 
But in the past I've reminded him and he's still left it to the end and he's told me he knows and he's got it. Fine. I've left it. 
Earlier this year he managed to get OSS something but I think it's because BM was talking to DH about college and grad presents and it was around the same time of his bday.

YSSs bday is tomorrow. DH has said boo about it. Nada. He's only focused on a set of meetings at work. 

Do you think:

a. He already bought or paid for something and very obviously told YSS it was his bday present. (I'm thinking something that had to be paid for already.)

b. He's forgotten but will say something he paid for recently was the present.

c. He will remember tomorrow morning and run out to get some book as a token gift but really has nothing to do with YSSs current interests. 

d. He won't remember at all. 
 

Also there are four other bdays within a two week span so it's not like there haven't been  talks about bdays.