Thanks @Gardenlady543 sorry for what you went through that sounds horrendous. I really hope the testing along with having the lubion and extra pessaries will help for you next time.
I don’t think my clinic will test my progesterone, the doctor is very nice but they aren’t interested in my worries about it. They wouldn’t even test my hcg levels when I was miscarrying, I had to go to the EPU. I’m NHS funded though so don’t really have a choice to go elsewhere at the moment. The good thing is that the pessaries did seem to at least work for me, although I was so worried at the time that a lot of it was coming out, but it was after I stopped them that the miscarriage happened.
The 14 day thing comes from various studies summed up in this study I think:
www.rbmojournal.com/article/S1472-6483(19)30785-0/fulltext
“Others advocate stopping progesterone shortly after the positive pregnancy test, on the basis that trophoblastic-derived HCG should support the corpus lutea to produce progesterone (Kohls et al., 2012). Indeed, some studies have highlighted no detrimental effect of early cessation of progesterone in fresh IVF cycles (Kyrou et al., 2011; Nyboe Andersen et al., 2002; Schmidt et al., 2001)”
However it is also shown in some studies, but not in others, that in women with recurrent miscarriages progesterone supplementation well into the pregnancy can help reduce the risk of a further miscarriage, so some women seem to have a problem making enough of it to sustain a pregnancy themselves. My theory, based on short luteal phase and spotting, is that I’m one of them, but I obviously won’t find out unless I get it tested.