Is it ok to take B6 in 25mg for low progesterone, due to a short luteal phase defect, would taking this alomg with my womens one a day vitamin be ok?

Yes, but try more. Yes, it's ok, but most experts suggest taking a total of 100-200 mg/day. However, it is wise to be cautious as doses over 200 mg/day have the potential to cause a reversible neuropathy (though that does not usually occur in doses below 1000 mg). Start with 100 mg/day. See https://sites.Google.Com/site/miscarriageresearch/hormones-and-miscarriage/progesterone-research/how-to-increase-progesterone.