Please I need help,I always have a serious pain when having sex.

Are you male or female? Where is the pain?

Have you discussed this with your doctor?

(Previous posts indicate female). Since you repeatedly ask basic pregnancy questions, I suggest you discuss this with your OB/GYN.

If there is pain, (and you are female) during sex.
1. you are starting sex without proper foreplay, and not ready yet.
2. you are having too rough sex
3. or there is a medical problem that requires a doctor to look at.