Any advice??

Just wondering I'm on cd 26, I took clomid this month and haven't got my positive opk...has anyone every ovulated late?? And I've been feeling really nausea the last three days...it's started Sunday I was dead tired i woke up at 7am , cooked everyone breakfast, after that I told my husband I couldn't keep my eyes open and longer it's was around 9:30am. so I was going take a nap church was for 10:30....I didn't wake up til 4pm and I been feeling off since then...did I miss my window??