5th pregnancy, help!!!

Hello all, I'm new to all of this but really would like other peoples views who are in a similar situation. I'm a mum of 28 to a 9 yr old boy, 7 yr old boy, 5yr old girl and a 9month old boy and i find myself pregnant again already 3 months gone, i am absolutely terrified my children's dad will support my decision he has done everytime and with every pregnancy. i live alone with my children we had a difficult patch and found we got along better apart we have been living like this for 4 years so its not all new to me I'm just terrified of having 2 so close together my baby boy will be only 14 months once i have this one, i don't want my other children to feel left out i love them all dearly i seem to fall pregnant at every wrong time is anyone been in a similar situation and can offer help. Telling people I'm pregnant is not something i will enjoy doing so shall wait till I'm showing. I tried to consider aborting i arrived at the clinic but asoon as i new i was 11wks gone already i couldn't abort