Vaginal pills

Hi everyone! I've had 2 miscarriages back to back and currently 10w 4d pregnant again (hoping for a healthy full pregnancy 😩) anyways the first two pregnancies I had gone to a clinic and was assigned an OB there. This time I didn't want to risk any chances at all so I am currently seeing a particular OB and so far I'm really content since he has already done an VU and blood test. However, because of my history of my 2 previous miscarriages he prescribed some vaginal pills that he said were some sorta hormones to help the pregnancy stay. Neither of the drs I have seen know exactly why I've miscarried but this dr says it could be that I wasn't producing enough hormones for the baby. Has anyone had these pills prescribed before? I'm a little scared of putting a pill up my vagina. Any feedback will be appreciate it! Thanks dolls.😘