I Am Pregnant For My Landlord Who is Hopeless in Having Child – How do I Tell My husband?

I slept with my 49 years old Landlord a few months after we move into his 3 bedrooms flat apartment in Lekki area of Lagos, is not my fault I find my Landlord a charming and caring man, my husband comes home 3 times in a week, so this gives us room to sleep with each other almost every day.

My landlord and his wife are yet to have a single child after 20 years of marriage.

The problem is, I mistakenly got pregnant for my Landlord and my husband is suspecting and has promised a DNA test immediately the baby is born, I lied to him that he is the father of my unborn child, please what should I do?

I don’t what to lose my marriage, nor abort the child, can I open up to my husband and tell him the truth ? or I should live him to find out the truth by himself? Please, I need your advice.