Do you buy a present for someone your dating?

It's been 4 months and we're not official.
It's probably been even less time since we see each other every other week. So really 2 months.
His birthdays the 10th and in all honesty Im not seeing him until maybe the 19th of November.
Do I buy him a gift?

My mums saying to me to wrap up the unopened glenfiddich that I have in the cupboard and give him a card since I'll never drink it and he likes to drink...