Progesterone suppositories

Anyone have success with these? I have had miscarriages without them.
​Was put on them for my DS and just got a BFP on Saturday and started them right away. Just wondering if this pregnancy has a chance...so nervous!
​I was also VERY VERY SICK and cramps the first few weeks with my DS and have only been slightly sick and only cramps for 2 days this go.
​Any stories or advice would be so great!!