I do but my son is 11 years old which is a massive difference compared to a 5 month old as he doesn't fully depend on me.. if he was 5 months old my partner would be on the phone every 5 mins - he's crying, where's his dummy, shall I feed him now
My situation is also different because my partner has never known any different (iv done this for 10 years and been with him for 8 I believe it's still secret because I never change my routine. I say I work in a call centre selling insurance so he can't contact me by phone and I can't answer mine, a lot of girls say they do care in the community so they can never be tracked to one place and again.. they are busy.
My only advice would be to fully think about what story your going to spin, make sure it's air tight, STICK to it like glue and don't change your routine, also don't spend spend spend. Sometimes if I really want something that's a bit extravagant il play that I'm a bit stressed cause hitting my target for a nice bonus from work this month depends on it.
Xxx