starting to feel like I'm out this month 😔

Ca

13 DPO took a test yesterday and BFN but my "symptoms" keep stacking up. first sore boobs then I got super emotional and now I'm having very vivid strange dreams and today I woke up with horrible nausea. I'm honestly scared to test again because I've been getting nothing but BFN since 8 or 9 days DPO. feel like I've been just wasting tests. I'm so confused.