How to ask for birth control.

So I’m 17 and I just recently lost my v-card. We used a condom but honestly, it’s sucks.
So I want birth control now. But I don’t know how to ask for something like that.
Here is my situation.
I’m dating secretly
I come from a military family
I don’t really get to leave the house that much
But I really love this guy. I trust him.
And I really don’t want to end up pregnant cause we are both freaking little teens and I can slowly feel my concern but him going in raw starting to fade.
Please I just need some advice, experience, on how to ask for birth control from strict parents

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