Anyone know about long luteal phases? My period is every 28-29 days and I ovulated around cd 11 - 12 which would make my luteal phase 16- 17 days long. Is that normal? Would it cause a problem at all ttc? I dont get to temp b/c I work 12 hour night shift 3 days a week.. so Im not sure about exact days. I got a + opk on cd10... It seems like the more I do this the more clueless I get!