Felt Like I had the flu

So we have been trying to conceive this is the first cycle that we actually are trying!! I'm pretty sure I ovulated a day before the app said I would because I was cramping and than my cm was very watery and clear. The next day it was white and thicker... anyways a couple days after ovulation I got sick like the flu no picking just sore and a low grade fever and napped almost all day. I'm just curious if it has anything to do with trying to conceive maybe. So I have a little cold but yesterday I was just so sleepy and just felt like crap.. but today I feel fine. Advice is helpful thanks!