H1-H4 and to H1B VISA

Hi All,

I submitted papers to convert to H4 from H1 visa (still it was not approved).For almost 8 months I didn’t worked and not even run my paystubs when I was in H1B visa after my completion of my last job because of maternity and because of place change I didn’t worked …and in july 2017 I applied for conversation of H4 -from H1 and in September 2017 it was expired and I have 140 approved (I completed only 3 years of my cap) …here my question is how much safe I am ,if I want to convert to H1again by cancelling H4 visa …or after approving H4 visa?

Please suggest…

Thank you…