My OB put me back on metformin for my pcos (insulin resistance), provera to start my period and…

My OB put me back on metformin for my pcos (insulin resistance), provera to start my period and Femara to help conceive (been trying for 3 years) I had a D&C on February 25th, should I wait and test before starting the provera and Femara or is the chance low and jus go ahead and start them?

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