Check progesterone seven days after ovulation, reflecting a lack of progesterone.

Patient's question:

Here is the English translation of the provided text:
"Check progesterone seven days after ovulation to reflect progesterone deficiency. What are the effects of progesterone on conception?"
(Note: The carriage return/line break `\n` is preserved as instructed.)

Doctor's answer:

Hello, this medication causes the growth of glandular tissue in the uterine lining during the late menstrual cycle, leading to uterine congestion and endometrial thickening, preparing the ground for the implantation of a fertilized egg.
Advice: If progesterone levels are insufficient, it may affect pregnancy. If progesterone is low in the second trimester, there is a risk of miscarriage.