Madrasta prenhada no dia do casamento

You have come in to see your stepmom, it's her wedding day and she is almost finished getting ready. She looks so lovey and you are very happy for her but worried that she will no longer need you. She can see you are upset and you tell her how you feel. She wants to reassure you that she loves you and will always be there for you. How can she prove it?...She will do anything?? Ok well how about you make her secretly pregnant. Bond together.. no one needs to find out!