Why can't baby be Tej' or Shakti' s?

Because don't think they are that fertile anymore LOL

Baby isn't shiv OMRu's it is deffo of elder Oberois or it is no ones but that's beyond the point... Wud these brothers hv accepted a love child of anirivya's? Nahi... The thot that Gauri was marrying kali (whatever reasons... It isn't Gauri's fault that thakurain committed suicide) Om HS given her the shit treatment... But here she is expected to accept his decision n smile... Similarly... The assumption that anika slept with her fiance hurt Shivaay who was all. Set to get married to tia and he behaved so ruthless with annika... But here he may hv fathered a child put of wedlock but annika ka koi say nahi hai whether she wants that baby in their life or not... Forget Ani coz she is supposedly ex... Gauri toh ex nahi hai... Use wife ka darja Dene ke liye itna prob hai Om ko but unknown baby ko daughter Maan Liya... Also Gauri will not hv a say to accept or reject the baby even after she gets right ls as wife Coz finally she is a wife n expected to accept everything her husband does n has done in past with a smile.