Is there a way to have sex and prevent pregnancy without a condom and no birth control?

I'm desperate. I cannot get pregnant because I'm in the Navy and not allowed to carry children before training. My husband & I hate condoms and want something new. My blood pressure is a tad bit high, so doctors will not let me use birth control. Is there some other effective way to prevent... show more I'm desperate.
I cannot get pregnant because I'm in the Navy and not allowed to carry children before training.

My husband & I hate condoms and want something new.
My blood pressure is a tad bit high, so doctors will not let me use birth control.

Is there some other effective way to prevent pregnancy ? Or should we just keep on using condoms?
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