Can you have symptoms at 5 dpo or before implantation?
After you ovulate, the ovarian follicle from which your egg came becomes a cyst called a corpus luteum. Its job is to manufacture hormones that keep a fertilized egg alive and healthy, and to cause your uterus to build up a thick, easily-penetrable lining for a blastocyst to burrow into. My experience is this: IF you are fertile, you almost always have a corpus luteum form after ovulation. The corpus luteum puts out these hormones whether or not an egg has been fertilized (it doesn’t know; it doesn’t care; it just does its job) These hormones are what causes PMS. The PHYSICAL symptoms of PMS mimic the symptoms of early pregnancy almost EXACTLY — because they are the same hormones, with the exception of the HCG that is ONLY put out if you are pregnant. I’m 6 DPO and have had a lot of these symptoms for the past 3 days. It is a sign of fertility — it’s a GOOD sign! But it’s not proof of pregnancy — only a positive urine or blood pregnancy test is. I have the headaches, the stuffiness,
