You realize that if you exit the US while on F-1 status and need stamping for reentry, you will not qualify since you would be married to a US citizen and would be assumed to have immigrant intent. You could also be denied entry with a valid F-1 visa due to your marriage. You would not be able to reenter until you receive a green card through consular processing. I do not understand what you believe to be the advantage of not pursuing a green card at the earliest opportunity if you plan to live in the US. I expect you are looking at not paying FICA taxes on OPT as a financial benefit; this is a short term view since Social Security benefits have and age and work length relationship for some benefits.
You really need to read the family based immigration information on the USCIS website.

