Progesterone dropped at 6-7 weeks while on pessaries

Hi Dr Sher,

Im currently 7 weeks pregnant and beta hcg was last measured at 6+5 weeks and was 35000. However, my progesterone has dropped from a high of 73nmol (about 22ng) to 50nmol (around 16ng). This drop has come while i have been on high dose progesterone suppositories for around 4 weeks now. So im a little worried about that.

Just wondering if this is cause for concern? My hcg seems to be rising appropriately.

Thanks!
Daniela