Disappointed. I'm 11dpo and just got a bfn

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Hey ladies. I was wondering if this has ever happened with u? As in the title, it says it all but let me explain a little further. The day i ovulated is the day my Bf and I had sex. We didn't do it after that. A few days later, I was having sharp lightning bolt cramps that weren't painful but definitely not AF cramps. Besides, AF isn't due for another 6days as of today. I even had nausea spells come n go. My emotions have been all over the place, my boobs were very sore and heavy. I even noticed I've been snappier than usual and my taste buds are off, even my sense of smell was higher than normal. Last thing that's happened which is NOT normal for me is that I'm having light creamy cm and I'm normally dry right about now. Today, I took a cheapie test I got at Randalls (Safeway to some who know that store) and it came back bfn. I just need some advice and/or someone to tell me their experience with this. Help please? Thanks for ur time. Love and blessings 💕