1. An easier labor and recovery
Having an orgasm increases the contractions in your pelvic floor, which help to strengthen the muscles you’ll need for labor and after delivery.

2. Less bathroom breaks
Feel like you always have to pee? Frequent trips to the bathroom, even leaking when you sneeze or laugh can happen when you’re pregnant.  Plus, as your baby gets bigger and presses on your bladder, it can be even more uncomfortable. The good news is that the same muscles that you’ll be strengthening for your labor can also help with the flow of urine.

3. Complication prevention
According to a Danish study , frequent sex may help prevent pre-eclampsia. Researchers believe it’s because of a protein found in sperm that can regulate the body’s immune system. Yet because the cause of pre-eclampsia is unknown, it’s important to keep your prenatal visits and talk to your doctor about your risk.

4. Lowered blood pressure
Although your blood pressure may be lower right after having sex, it’s only temporary so the cure isn’t sex all the time. Since high blood pressure can be serious for both you and your baby, it’s important to work with your doctor on ways to prevent or control your blood pressure.

5. Better orgasms
Since your body’s nerve endings are more sensitive, your nipples and clitoris are engorged, and there’s more estrogen drawing blood flow to your pelvis, it’s usually easier to achieve orgasm and they’re also longer and stronger, women who had trouble having an orgasm prior to pregnancy may now find they no longer do.  

6. Improved self-esteem
With all the changes that happen during pregnancy, it can feel that your body is no longer your own. Yet having sex can help restore your body confidence and positive feelings about yourself.

7. Stress reduction
Although pregnancy is usually a happy time, it’s normal to worry about things like work, finances and how your life will change after your baby is born. Oxytocin, the love hormone that your body releases when you have an orgasm, can help to negate some of that stress and also help you sleep better.

8. Improved connections
Having frequent sex now will help strengthen the intimate relationship and bond you have with your partner and establish a healthy habit for the future.

9. Preparation for labor
If you’re full-term or past your due date, having sex won’t put you into labor,but it can help your body prepare because semen contains prostaglandins which can help ripen the cervix.