I am currently 13DPO today / CD 33/31 so my period is late. I have taken a 10mül tests every other day and have gotten negative throughout. I have not had any menstrual cramps at all only what can be described as a twinge in my right pelvic area. I have been checking my cervix regularly and it has been high since I had gotten my second peak on 15th of Jan. It has been also leaning towards my bum or curved/ tilted at the top so I couldn't really feel the opening but it doesn't feel firm or soft it's in between. I had gotten two peaks in my cycle using CB OPK before I had ran out. I had b'd on 2,3,7,8,9,10,12,14,15,16 of Jan. Got my two peaks on 9th and 15th of Jan so I made the most of the high and peaks. I have been getting cramps in my pelvic area rather than my stomach which I would be used to. Other symptoms I have had include sensitive nipples, and sore when lying or checking my breasts which I never get before AF, my areola is darkening slowly. Had the usual headaches, backache, feeling hungry but not eating as much, bad mood swings and fatigue but my CM has been milky/watery after predicted O. My question is has anyone had these symptoms and gotten a BFN at 13 DPO and still got a BFP later in the cycle? Many thanks!
You're not out til AF arrives I posted this on another thread a little while ago to help myself understand about implantation:
Timing of Implantation
A pregnancy test detects the presence of the pregnancy hormone hCG (human chorionic gonadotropin) either in the blood or in the urine. The hCG in the urine comes from the hCG in the blood after it was filtered through the kidney. After ovulation, the egg gets fertilized and travels through the fallopian tube toward the uterus. This travel takes an average of a week. Implantation, the attachment of the fertilized egg in the lining of the uterus, occurs on average about a week or later after ovulation/fertilization, but it can happen as early as six days and as late as 12 days after fertilization/ovulation. At the time of implantation the placenta starts making the pregnancy hormone hCG, which then enters the blood stream. How early pregnancy can be detected depends on the pregnancy hormone hcG which can be detected in the blood about three to four days after implantation. Urine hCG can be detected about two to three days after blood hCG can first be seen. Detection of hCG depends on timing of implantation, so hCG can normally be detected in the blood between nine and 16 days after ovulation (HPT: 12-19 days after ovulation).
So, to sum things up, some women may not experience implantation bleeding (if they experience it) until 12DPO. After that, the HCG hormone detected in early pregnancy tests wouldn't be able to be detected for another 5 days or so. This means that some women wouldn't get their BFP until 19DPO.