Hi, I Am 33 Year Married And Recently Trying To

Hi, i am 33 year married and recently trying to conceive with my husband. I am at peak of my ovulation period so we are trying. Even though we had protected sex before few times..but since we are trying..i am getting low grade fever after trying about 98.8 and not going away..slight cold is there as well. Can you help..what could be wrong..any infections i might have got?