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Questions about luteal phase

(22 Posts)
saz29 Fri 08-Aug-08 21:42:18

Hi, was just wondering if anyone takes B6 or anything else to lengthen their luteal phase? Did you find that it had an effect? How much did you take? Also, when is it safe to take in your cycle and should you stop if you discover you are pregnant? Oops - so many qu's - sorryblush

MsG Sat 09-Aug-08 12:43:49

Hi there. Sorry, I don't know much about it - I just take folic acid. Hopefully someone else will be able to help!


pinkmook Sat 09-Aug-08 14:25:27

Hi Saz29 I take a B complex (supreme B complex from holland and barret) that contains B1 B2 B6 B12 folic acid and some other bits and bobs all at 100mg (within the one tablet IYSWIM) apparently some people take up to 200mg at a time but this has worked fine for me and I now have a luteal phase of 14 days.

I am not sure if you would have to stop it once you found out you were PG but if I did become pregnant I would just swap to a tablet like pregnacare I guess.


BrightSideOfLife Sat 09-Aug-08 15:00:45

Hi saz29,

I take a general multivitamin and an additional Vitamin B complex (The Boots own brand.)

It has really worked on lengthening my LP, it has increased from 9 days to 13 days, and this month I have ovulated a day early, so I think it may be up to 14 days.

I have heard that B-Complex is safe to take during pregnancy and actually, extra Vitamin B Complex is often recommended to help prevent morning sickness - so I will continue to take it when I get my BFP.

minitrip Thu 14-Aug-08 15:38:25


I've been TTC since January with no luck. I've been monitoring my BBT. I also tried ovulation tests, but they didn't seem to pick up anything at all, but not sure if I was just trying at wrong time of day, I've had periods every month, so I assume I'm ovulating, but the cycle length has varied a lot:
27, 27, 30, 26, 24 days over past few months.

Strangely, according to BBT chart, LP is also a bit erratic:
11, 8, 13, 9, 7 days over past few months.

I'm pretty sure I've got a LPD, but am having blood tests at GP surgery. GP suggested annovulation, but I thought you don't have a period if you don't ovulate...

I've heard (sister is GP) that Progesterone isn't offered on NHS in UK. But maybe that's just in her part of the country. Anyone had Progesterone on NHS?

Anyone else tried Vitamin B6?

I have a DS and managed to conceive after 3 months of trying for him, so this is a new problem.


hanaflower Thu 14-Aug-08 15:52:26

Message withdrawn at poster's request.

CaptainKarvol Thu 14-Aug-08 16:28:58

Hi, just browsing...
minitrip, you can still have periods if not ovulating - I certainly had one the month that my blood test at the GPs showed that I had not ovulated. I had all the signs of ovulation - EWCM, cervix changes etc (sorry TMIblush) just no ovulation. I also never got a + on OPKs, though I believe you have to do them twice a day to be sure of catching the hormonal surge - good info on!

beanieb Thu 14-Aug-08 16:31:51

I've been taking a vitamin B Complex also and my luteal phase has been variable. Was sometimes as short as 8 days, has been 12 but am averaging about 11.

I have upped my intake this month, taking a few tablets a day in teh hope that I manage to lengthen it more.

minitrip Thu 14-Aug-08 16:46:53

hi kaptainkarvol

Thanks for info. Good to know it's not just me having bizarre cycles. Will prob wait to hear what to says next week before I start taking b6 as it sounds like it might be annovulation instead. Confused!!!

minitrip Thu 14-Aug-08 16:53:08

Beanish, out of interest how much b6 do you take? What's recommended? Is it possible to take too much? X

beanieb Thu 14-Aug-08 19:19:05

There do say that it's better to take a complex Vitamin B rather than B6 on it's own. Very hight doses can cause nerve damage but they do mean VERY high.

Mine are 6mg, and I take about 6 a day plus my pre-pregnancy vitamin. I think 100 MG a day is ok.

lastboxoftampons Thu 14-Aug-08 19:24:21

Taking Charge of Your Fertility recommends 200-500mg/day of B6 to lengthen an LP. I take four B complex vitamins a day that contain 50mg of B6 each - so 200mg/day.

minitrip Tue 19-Aug-08 11:57:13


Just back from the GP. All of my blood tests were fine, so apparently I am ovulating, but she has referred me to a fertility clinic anyway. I am still worried about my irregular cycles and erratic/short LP:
11, 8, 13, 9, 7, 9 days over past few months.

I think I'm going to start a vitamin B complex (like lastboxoftampons above) to try to lengthen my LP. I've also read about Agnus Castus and Zinc. Does anyone know whether they can be taken at the same time as vitamin B6, or would this cause conflict? Would it be better to stick to vitamin B6 and a multivitamin?

beanieb Tue 19-Aug-08 12:21:52

You can take agnus castus at the same time but should stop taking it during your luteal phase.

lastboxoftampons Tue 19-Aug-08 13:09:14

Minitrip I'm also taking agnus castus - last month was my first and I'm not sure whether it was taht or the B6 or a combination of both, but I added a day (Possibly two) to my LP - from 10 days to 11. It was hard to tell because we were away on 11-12dpo and I had some spotting, but didn't want to take any chances with having an accident so jus used a tampon, making it difficult to discern whether spotting or light flow.

Anyway, I take 800mg of agnus castus, and I take it all cycle. There's lots of conflicting advice, but the fact that it's a herb and needs to build up in your system was enough to convince me that I should continue with it throughout my cycle. Some women even take it throughout their first trimester once they are pregnant. My repertoire wink now consists of 400mg AC, 100mg B6 (in a complex), omega 3-6-9 and a prenatal all in the AM and then 400mg AC and 100mg B6 again at night. Hope that helps!

lastboxoftampons Tue 19-Aug-08 13:10:40

Oh, and I meant to ask - what method are you using to determine your O date? As you know, t's a bit unusual for your LP to bounce around so much.

beanieb Tue 19-Aug-08 13:26:38

Hiya lastboxoftampons. I have been using a fertility monitor and OPK. Was getting a peak on or around day 15 until last month when it jumperd to CD11! back to normal this month though - CD15 again! My luteal phase has gone from as little as 9 days to as much as 15.

lastboxoftampons Tue 19-Aug-08 13:51:44

Hi Beanie smile I meant to direct that to minitrip! But, since you mentioned it...Has your LP been consistent or does it jump around from 9 days to 15?

beanieb Tue 19-Aug-08 14:08:39

I've been recording everything on fertility freind so I can tell you exactly

March LP was 11 days
April LP was 10 days
May LP was 9 days
June LP was 14 days (my period was quite late)
July LP was 15 days (I ovulated much earlier than usual)


minitrip Tue 19-Aug-08 14:38:30


Thanks for your advice. I am using a BBT chart to monitor my ovulation. I know it's not perfect, but I found that I didn't pick up anything at all using ovulation tests (tried them for 2 months). GP says my blood results show I am ovulating though.

Strangely the first part of my cycle (pre-ovualtion) tends to be consistently about 17 days, then the luteal phase is very inconsistent and short (11, 8, 13, 9, 7, 9 days).

Beanieb, has your LP gone up to 14/15 days as a direct result of taking vitamin B complex, or do you take other things too?

beanieb Tue 19-Aug-08 14:57:30

I have been taking Agnus Castus up to ovulation for about 3 months, though I am bad at taking them so never take enough.
I have also upped my Vitamin Bs ... I am thinking it is probably connected!

anniemac Mon 01-Sep-08 11:40:23

Message withdrawn

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