Am I pregnant!?!?

Due to our busy schedule it has been two months since me and boyfriend did anything. I had lost track of my ovulation days (got a new phone) fast forward to this week my boyfriend open a bag of chips around me that he has always eaten before but this time I could not stand the smell I got really nauseous I thought of nothing at first but today went out with my girls and the same thing happened but this time I was about to eat. I do not want to tell my boyfriend we have been disappointed in past. My mother and cousin are trying to push me to go get blood work done. I have taken pregnancy test they have came out negative before this is a different feeling