Theresep,

I was on pessaries and crinone for my stim cycle. I have always had break through bleeding with my cycles and the thought was that if the lining of the uterus was starting to come away a week after transfer, how could an embryo stick? So I was on pessaries and crinone twice daily. Ended with a -ve BT result.

For the FET, I was on pessaries from the night before transfer up until BT. A week after BT, with a +ve result, I started bleeding and was put back on pessaries until 10 weeks into pg.

Some clinics monitor levels of progesterone when they do BT and can work out if you need additional support. Ours didn't but I requested pessaries as support, knowing that I wouldn't make it 2 weeks to BT day without progesterone support.

Hope that helps. GL with your cycle