Just Wondering

My boyfriend and I had sex 4 days before ovulation and yesterday which is a day before ovulation according to this app and Flo. He finished inside me both times I’m not worried if I’m pregnant I’d be happy either way but is it just my mind or because today I feel nauseous bloated and kind of shaky I know I won’t know til like next week but just wondering I also have two kids so this isn’t my first go round but it’s been awhile lol