Help! long luteal phase?

Hi, I need some help! This cycle took me a little by surprise. I ovulated nearly a week earlier than I expected, so although we BD'd at (what appears to be) the right time, I only started temping the next day - which seems to be the day I ovulated (judging by the low temp & then constant rise). That was cd 16 and I'm now up to cd 37; which would make it 21dpo. I had one day of very light spotting on 10dpo, and then more light spotting on 14-16dpo and then nothing. Previous cycles when I've temped I've always had a 13-14 day luteal phase, so I tested on Thursday but got a BFN.

My temps have remained high until this morning when they dropped a little (by 0.14). We bd'd this morning, but then I noticed (TMI!!) a light pink tinge in my cm (normally my spotting is brown) but it seems to have stopped now.

So maybe AF is on it's way, but then I didn't think the luteal phase varies that much. Then maybe I am pregnant, but then why haven't I tested positive yet? And I have no symptoms at all apart from a bit of a queasy tummy the last couple of days, but doesn't m/s normally happen from 6 weeks on? I had sore breasts like normal in the days running up to when I thought AF would be due, but that stopped nearly a week ago.

So I'd just like some advise - if I'm not pregnant, what other options are there? How common is it to be pregnant & not have sore breasts? And has anyone else had late BFP's when they've charted their cycle?

Sorry for the long post, but it's good to get it out!

Ditto about sore boobs - even now my boobs aren't really that sore, mostly itchy nipples (TMI!).

thanks everyone. Well I'm not pregnant; AF arrived last night. Had a big cry last night, and talked to dh and feel a little better this morning.