Hi, I need to travel to Us on B1 visa for few months. My wife holds B1/B2 visa and she need to travel with me. My wife is pregnant and it is possible that she will deliver before we come back from the US. Is she allowed to enter the US with 6 months pregnancy as B1 dependent? Are there any immigration laws that prevent her from entering? It is also possible that my company may convert my B1 to L1 in 1-2 months after I am in US. Does this add any complexity in the process for my wife because she is pregnant? Thanks for the help.