Travel on H4 due to emergency while waiting for H1B approval notice

Hi All,

Right now my h4 is stamped & valid till 30 sept 2017 & my wife is on H1b in US with my daughter. I have received h1B receipt notice for 2017 & waiting for H1B approval notice. However due to some health issues I may have to travel to US from India on H4; may be end of August for wife’s help. My wife’s H1B extension is in progress which is due to expire on sept 2017. In this situation Can I travel to US & will it impact my H1 processing?

Please suggest me and also help me how to proceed further.