I have read that 12-14days for a luteal phase is considered normal and a short luteal phase can make it more difficult to conceive. I’m a little concerned. I am on month 4 of ttc after a miscarriage at 9weeks and have just figured out that my luteal phase is about 10days. This was the first month I did ovulation testing and now realize the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> has not been accurate on estimated ovulation day in the past couple months.