Sex during Ovulation

Ka
Hello I have a boyfriend and we don't use protection we really Iove each other and made love the time i ovulated . I am feeling weird now after a week . Nassau bloating constipation headaches my ovaries are very sore and I feel like my stomach is "unsettled" my period is supposed to start in 3 days . I just want advice on if I could have conceived or not . When we have sex now in the midst of action I feel Nausea like I'm sea sick , it has happened twice already . Not sure what is happening . Hopefully someone can help