We have our differences, but I really didn't think he'd stoop that low to tell a 4 YEAR OLD child that!
Truth: no, my door was always opened to his dad whom I ended things with 3 days before finding out I was pregnant. I would let him know about my doctor appts. during pregnancy, he never showed. When DS was circumcised EX didn't show, he claimed he was out of town working. After the appt. I passed EX. He was in town. He didn't come. He was always in and out of DS life until he got marred and his DF (now wife) told him if he wanted her to marry him he had to be in his DS life. She was a single mom too.
I shouldn't be surprised that he said this, but I am surprised he didn't consider that his son is only 4 and isn't yet old enough to comprehend the mess that was us during pregnancy and after birth. However, I believe if a child asks he has a right to know the truth, so yes. I told him I never kept his dad from him and when he grew up I would explain it better to him.