Boyfriend knowing you're pregnant before you?

My boyfriend thinks i'm pregnant. Cycle starts Dec 27th, that was a 26 day cycle. I've had them as long as 37 days. Most common is 30-32. I believe I usually ovulate around 14th day, by discharge. Not sure if I did this month. We had unprotected sex Jan 1st, and 15th, few times since the 15th. Also used pull out method the rest of the time. So I have sore boobs which i've had before my period. I was put on Clindamycin which I took 2 days and stopped because I felt like ****. I feel sick to my stomach, headache, had a slight rash, which I put down to side effects. He thinks they're pregnancy symptoms. Also hot flashes. Has your guy known your were pregnant before you? Even when i've had longer 35 day cycles before he never said "You're pregnant". Even when I felt sick before he never said "you're pregnant". He's been saying this to me all day and telling me to test. I'm afraid to, but oddly because I think it'll be negitive. But we're not trying to get pregnant. We just aren't preventing really either.