Thinking of uping my dose of anti depressant. Should I wait till doctor asks me or can I ask first?

Ask.

Definitely speak to your doctor about this before doing it. Sometimes I think of decreasing it or increasing it and I'm sure it's the right thing to do. Then, after speaking with my doctor about it, I find out it wasn't. They're the professionals so they know best.

you should talk to your doctor first before you do that

always talk over things with your doctor to make sure you wont end up hurting yourself in some unknown/unseen way

You can ask first.
The doctor works for you.