What is wrong with my body?

Question: 

Dear Auntie Nangy I am 20 years and I have a problem with my body. I have a boyfriend that I love so much and we’ve been together for one year. My problem is that we used to have sex without a condom and nothing happened. Do I have a problem with my body? Why don’t I fall pregnant? Please help me.

Answer: 

I suggest you make an appointment with a doctor to do a thorough check-up and for you to get peace of mind.