I've always had a 10 day LP but I'm 8DPO and started bleeding today. I did get positive OPKs 4 days before my temp rise so if I went by that it would be around the normal length. I've always thought the temps would be more accurate though (especially as I use an Ava bracelet that takes an average of temps over night so less of a margin of error than using a bbt thermometer).
The cramps are really, really painful as well. Much more than usual!
Anyone experienced a shorter than usual luteal phase? Hoping it's just a one off but would love to know what's causing it, especially as it's so painful!