10 DPO symptoms

Okay, so today I am 10 days past ovulation. I noticed noticed last night that my boobs are huge and heavy. I have been having cramps and back cramps and I’ve been stuffed up in my head for a few days. My breasts are sore and I’m having a lot of CM. My nipples seem darker as well. Took a test with fmu and got a bfn today. I know it’s still early but anybody else have these symptoms and got a bfp??