Single Parent

Good day po. Im weeks pregnant po with my boyfriend who is also my colleague. We are both public school teachers. But he was legally married with his first wife. Got separated for 15 years already no children at all. After he got separated from his former wife he is now living with another woman with 2 kids. They are living together now.for almost 13 years. While we are in the same workplace, i was in love by him knowing his current situation. And we are in a relationship for almost 3 yrs. The teacher's from our workplace also knew about us. Now I am weeks pregnant. I am asking for some legal advice on what to do po kasi i dont want him to be terminated in his work. And i also dont want to leave in the school where im at. What if they found out that he is the father? Are we going to be terminated? I was planning to ask someone to stand as the father. But im not sure if they (colleagues) will believe me. What will I do po?

you can deny that your colleague is the father.