Eren was disguised as a wounded soldier in Marley to make it more believable he started a family with a woman that was already sick and dying so nobody said anything, their was no love in it, it was simply just for a benefit

Soon Eren and the women had you

Was he aware it could get you and her killed if they found out her a Marleyan and him a Eldian had a child, yes he was was he aware of your birth was only for his own selfish desire and plan, yes he knew that

But as the Marleyan woman was passed out because have a child did a number on her already dying body, Eren was holding you

Eren stared at you