It is a very normal phenomenon to want to fart during ovulation, because as the body temperature rises and female hormone levels change, the female reproductive organs will release a substance called "prostaglandin". This substance stimulates women's receptors, causing them to experience a sensation similar to farts.

During intercourse during ovulation, a man can increase his chance of pregnancy by ejaculating into a woman's reproductive tract. However, men may experience some discomfort during the procedure, especially when prostaglandins are released. This can cause men to have a fart-like feeling, especially late in sex.

While this phenomenon can be embarrassing for men, there's nothing wrong with it. If a man feels uncomfortable, he can suspend sexual intercourse or use other methods to relieve discomfort. If men feel unwell for a long time, it is recommended to seek medical advice promptly.

During sex, men should maintain a relaxed and happy attitude, which can help both parties enjoy sex better. At the same time, men should avoid being overly excited and nervous to avoid discomfort.