Always feeling sleepy after intercourse during ovulation may be caused by a variety of factors. During ovulation, a woman’s egg is released from the ovary and travels into the fallopian tube to await fertilization. At this moment, a woman's body will undergo a series of changes, including increased body temperature, accelerated breathing, increased heart rate, etc. These changes provide the body with an intense sense of excitement that causes people to want to sleep.

Feeling like sleeping doesn't necessarily mean you're not getting enough sleep. In many cases, it is a normal physiological response that helps women regain strength and energy after sex. However, if you often feel tired or unable to regain your energy, you may want to take steps to improve your sleep habits.

First of all, it is recommended that you maintain a good sleeping environment. Keeping a quiet, cool, and comfortable sleeping environment can help you fall asleep and wake up better. Also, avoid drinking coffee or caffeinated beverages before bed as this may affect the quality of your sleep.

Secondly, it is recommended that you establish a regular sleep schedule. Going to bed and waking up at the same time every day can help establish your body clock and help improve sleep quality.

Finally, try some relaxation techniques, such as meditation or deep breathing, to relieve stress and anxiety. This will help you sleep better and regain your energy.

To sum up, feeling sleepy doesn't necessarily mean you're not getting enough sleep. If you often feel tired or unable to regain your energy, you may need to take steps to improve your sleep habits. Maintaining a good sleep environment, establishing a regular sleep schedule, and trying some relaxation techniques will help you fall asleep better and regain your energy.