I need some advice!!!!

I am currently on cd 33 or 15dpo and AF is suppose to come today and normally I am like clockwork. I took a hpt, clear blue weeks estimator test, this morning and it read "not pregnant"...am I out or should I test in a couple of days? Also on 13dpo and 14 dpo I have cramps and an abundance of creamy cm....today, so far, I feel a few little cramps here and there but cm is not as present as the other days...also my boobs/nipples just stopped hurting all of a sudden yesterday. Any advice would help!