Can i claim more WELFARE for kid with OTHER WOMAN?

i'M LIVING WITH MY PARTNER and our 5 KIDS. We are from Nigeria. We have a wonderful home from teh council, spacious in a lovely part of town. We have enough money for everything so we are not complaining. However, while my partner was pregnant last time, i felt neglected and had a brief fling with a lady down the road. She is now pregnant so this will be my 8TH kid. I'm wondering, can i claim more money for this kid