Skip to content
Includes Expert Content
Ovulation calandars are confusing!!! HELP!
cntrygrl86 posted:
my husband and i are trying to get pregnant and the ovulation calandar that we have is confusing. It wants an exact date my period ends. i put in the begining day and it calucates when it ends but sometimes the end is wrong how do i know exactly when my period ended?
Susannah D Copland, MD, MS responded:
Charting your cycles and finding your fertile window can be confusing. The good news is that you are putting in the most important day, the day your period starts. A period start usually coincides with the time that our ovary hormones are at there lowest, when the cyst of ovulation from the last cycle has gone away and the body is just starting to pick our next cycle's egg. This is the most important date for your monitor. A period end date is much less helpful because length of cycle is affected by too many factors. I recommend continuing to do exactly what you are doing: enter the first day, best guess on the last day or just let it calculate the date. Good Luck!
dmr959 replied to Susannah D Copland, MD, MS's response:
What if you don't really know when your first day of your cycle is? I took clomid for the first time, and when I finally starting to show signs of a menstrual cycle, I am not even sure that's what it was. I didn't show any bleeding for 35 days, and then for the last 5 days now, I have had spotting in various parts of the days, but not consistantly throughout the days. I don't know what this means. Due to not really knowing what the first day was, we decided not to use clomid this month. I didn't want to take it if the timing was off. I thought about checking my temp and/or using OPKs, but I still don't know what the right time is.
lnl2303 replied to Susannah D Copland, MD, MS's response:
I have got my hormones tested and the doctor said I am not ovulating like I need to. I have been taking progesterone to help. How will I know if I start ovulating?

Featuring Experts

David Walmer, MD, PhD is a reproductive endocrinologist and infertility specialist at Atlantic Reproductive Medicine Specialists . During his 25 year...More

Helpful Tips

TTC Basics you need to know
Ask yourself the following questions: What steps are you using to concieve?? Are your cycles regular? How long have you actively been ... More
Was this Helpful?
6 of 6 found this helpful

Related Drug Reviews

  • Drug Name User Reviews

Report Problems With Your Medications to the FDA

FDAYou are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

For more information, visit the Duke Fertility Center