My Husband is seeming less intrested in our love life

Me and my husband have hit a little rough patch recently ever since I dropped out of cosmetology school. He's been really supportive working extra shifts while I keep the house nice and job search. I was thinking of "fun 😉" ways to repay him by texting him all day how I was gonna reward him and sending some spicy pics of me around the house. When he got home we went straight to the bedroom and I made him eat me out first as a little pregame fun, however that's where the problem arised. After he ate me out I was far too tired to return the favor. We tried again a few days later, but this time around I got a killer migraine after he ate me out. He said it was fine but now he's showing little to no interest in me sexually. I know this doesn't paint me in the best light but I am I really THAT in the wrong for not being in the mood?