Any advice plz

So my cycle has been going on for 42 days now and I've been testing. Last test I took was last Friday. Its all been negatives. My periods are usually at the ending of the month. But I got nothing in august. I've never skipped a month. I think I'm preg and my levels are just low. That's what my best friend is saying and she is currently expecting. My boobs have swollen up, gotten bigger, and are full, the nipples have expanded and are dark and sensitive. I'm always hungry, peeing a lot and drinking a lot. Could this be a chemical pregnancy?? I'm not thinking to much about it I'm just curious. I Dont like not having a answer basically. I had light bleeding august 18-20 and it wouldn't even fill up a pad all together. It was so light. Any advice would be wonderful. I just want a positive. I'm tired of negatives😅