Positive progesterone test on day 28 - but no period at day 41! could i be pregnant?

[sarah47]

Hi ! i am hoping someone out there can advise me on this. I have been ttc for 6 months and last month my doctor sent me for a cd 21 day test. I knew that as my periods were erratic and the last one being 37 days (the previous 2 being 25 days and then prior to this I am sure it was around 30) so i actually took it on day 23. however it came back as no ovulation so my doctor advised me to take it again on day 28. this came back with a level of 41 which i was very happy about! So there are 5 days in between when the tests were negative and positive so am trying to work out when i actually ovulated because i am now on day 41 and no period. I took a pregnancy test yesterday morning and it was negative and rang my doctor as i am so confused about what is going on. He said that they couldnt tell when i actually ovulated so its hard to tell when i am due on. But surely if i had a positive ovulation test on day 28 then i should have come on by now? Trying to calculate this is making my head explode !

was it too early to take a pregnancy test? I thought it was a set amount of time between ovulation and period which is why i am so confused!!

 

[LouiseB]

No, it isn't a set time and even if it was then you'd still not expect your period yet.

The average is 14 days long, which would mean that if you ovulated on cd28, then you wouldn't expect to see AF until 42/43.

It can fluctuate between 12-16 days though, maybe even more, so you might not see AF until cd 44/45 at the very latest

 

[sarah47]

hi!
thanks for your response - i think i got my wording wrong (I am new to this!) i did not ovulate on day 28 this is when i took had my "21 day" progesterone test which came back at a level of 41. Which i take to mean that i ovulated 7 days prior to this?

 

[LouiseB]

Oooohh, i see - i didn't realise that it meant you had ovulated 7 days before.

Do you know what unit the 41 is in?

 

[sarah47]

No I didnt think to ask my doctor - he just said the results came back at a level of 41 which indicated I had ovulated. The test 5 days previous he just said i didnt ovulate but didnt give a level.

 

[LouiseB]

Ah ok, he'll know what is what then

There is a site with info about progesterone levels and 41 ng/ml wouldn't be experienced until Tri 2 and 4.1 ng/ml isn't a satisfactory level for ovualtion - 5 is the minimum and 10 is preferred.

If i knew what 41 was, i could do more research into it because i don't actually know from personal experience.

 

[sarah47]

what i have read on the subject is that anything over a level of 30 (whatever that level is!) indicates ovulation so I was just happy my doctor said i had ovulated as my results were 41. But what I am confused about is that he says this test still cannot predict the day i actually ovulated and therefore I cant predict when i was due to get my period. I had the progesterone test on 27th September so thats 12-13 days ago. does that make sense?

 

[LouiseB]

Yeah i know what you are confused with

I thought it there was a unit, that i could look into how progesterone levels rise from ovulation onwards to try and gauge how many days before the test it might have occurred and then when you should get your period by.

I'm sure you'll have it in a few days.

 

[serenitylove]

my best advice would be buy in a haul of cheapy pregnancy tests and same of ovulation tests as your cycle seems all over you may just have to keep testing till you get a positive or af arrives if you work it out that the latest you ov'd was say day 30 then by your cd 44 should be your af due day working on 14days give or take a few days with a level of 41 i doubt it was much after that you ov'd
if you get af then id say every day from day 12 till you get positive do a opk test as it really gona help you over a few months figure when your ov'ing hope i not confused you [i have no full stop button so it all blends in lol] best of luck xxx

 

[sarah47]

So i still could not actually be "late" then?- its all very confusing! i cant believe that before ttc i didnt care when or if i ovulated i thought that by having this progesterone test it more or less stated that i had ovulated 7 days prior to this. Working this out on my calendar that would mean i ovulated on or around the 20th Sept. I suppose its just a matter of playing the waiting game. I just wanted to see if there was any glimmer of hope that i could be pregnant even though i had a negative home pregnancy test yesterday (if there was a set number of days from ovulation to the start of the period ). my doctor has booked me in for a blood test on wednesday in case the period does not arrive.