Hi,Im in India now. My H1b petition for this year has been approved and is yet to go for stamping. I have plans to go for MS and have got admission for spring intake. Can I go for F1 stamping while a H1B petition was recently approved? In that case, can I use the h1b visa after completing the MS ? Will it be still valid to go for stamping after completing my MS or will H1B gets cancelled when I get my F1.