so stressed help

Okay so my bf & I had sex June 1 and then again June 13
He has very good self control and knows when he is going to cum. He always tells me that he will cum soon so I'm ready for him to pull out. So those two times we had sex so far he is 1000% sure he pulled out and in time. I was a bit worried because I am the parinoid type but I was feeling fine. When he pulled out he didn't not cum near my vagina at all. 
Now I have a few events coming up and I might have gotten a cold from the ac being on and me being freezing
I woke up in the middle of the night and had a lump in my throat, later I felt like throwing up but I did not.
I went to bed later and woke up fine, then the lump in my throat feeling came again. Seems like whenever I think about it , it comes up. I have a big even tomorrow and I might be subconsciously stressed about it ? Might also be the cold... 
I might also have the lump in my throat feeling  because I'm super worried.
My period is expected in the few days like next week ish.... so my breasts are a bit enlarged. Would I experience symptoms this soon. I'm just super worried and stressed and I don't want to Ruin my event tomorrow worrying about this.
I've learned my lesson, protected sex always from now on. But I'm just super worried I hope my chances are below and very  low. 
Just looking for reassurance ❤️
Thank you 
I hope it's just my nerves 
My bf said I have nothing to worry about and my chances are very very low.