Destroying Prerna's character

My post has nothing to do with PreRish or AnuPre but with one aspect of Prerna's character which is why exactly is she hiding the baby from its father? During the Komolika track it was understable but what about afterwards when she wanted to marry him,and all that jazz.Is it because she wants him to move on without any baggages? That's unfair on both the child and the father who have no say in the decision.And for someone who is so empathetic and understanding even towards the ppl who wrong her to be this unfeeling and inconsiderate towards her own flesh and blood and the man she claims to love is what's ruining her character.For me, Anurag and Bajaj come later.Its lack of depth in Prerna's character which gets me.Had she not forgiven Anurag for marrying Komolika and hidden about her pregnancy then it would've made sense but she forgave him