I don't want to freak...

so... My cycle is 26 days. My fertile period was the 14th-19th. My husband and I had unprotected sex on the 15th and he didn't pull out. since then, I had cramps on the 20th and 21st. I've been nauseous and very fatigue since then too. My boobs and nipples are super sensitive. I can't even fit my bras anymore. My bbt is usually 97.9, but since the 20th, it's been 99.3. I took a test. and in the window it showed negative. well I turned it over and seen something. so I took it apart and I seen a second line. I took the pics not even 5min after taking it. does this look positive.??