When did you stop progesterone supplements?

Had a missed miscarriage back in November  with no obvious cause. When I got pregnant again in March, dr put me on progesterone right away bc it was low (8.5). I'm now at 16 weeks and wondering when I can wean off. It's so annoying to take twice a day as a suppository and still go about my daily life (but obviously it's worth it for a healthy baby). I should buy stock in panty liners!