Looking for advice

I am 31 years old and lucky enough to have two beautiful children one 6 and another 2 they are half siblings the 2 year old is my SO first child I want to have one more and have told SO that I want another one and I am not taking any BC but he says he does want another one right now but we have sex almost every day he does the pull out method and a few times didn't pull out am now 2 days late haven't taken any tests yet but I am afraid that he will be mad if I am PG since he didn't want to have another baby yet.