<human>: Can you provide a brief overview of the text?

My wife and are are recently married and plan to start a family soon. We have started talking with a financial advisor and received some quotes however I'm looking for a validation or second opinion.
He advises a term policy that has an extended convertible rider so we can have the option to convert to perm insurance in the future when we may be looking for tax free vehicles to invest into.

Our current combined income is 160k (with a lot of student loan debt that will be paid off in about 7 years).  In about 2 years our income will jump to about 250k when my wife completes her medical training and gets a career job in her field. 

So my immediate need is for the first 7 years until our student debt is paid off, the. As we go forward and Save money we won't need as much life insurance. 

That said we were advised to get 2- $1mm policies, 1 10year term and 1 20.  In 10 years we let the 10 year expire or convert it if we are in a position to over fund a perm policy for tax advantages savings. 

That sounds like a good plan, it's just a lot of money (1,600 /year) for us to buy those 4 policies right now. 

Does anyone else use this strategy or something similar? Should I do something less with a 500k 10 year and 1mm 20 to save premium (about 1,100 / year). Knowing I can convert the 10 year and still new the 20. 

Sorry for the wall of text. Just trying to wrap my head around it. I want to make sure if God forbid something happened to either of us the surviving spouse would be able to survive, not planning to make either of us wealthy over that traumatic event.
<bot>: is buying a 10 year and 20 year term policy for each of us with options to convert both a good idea to front load protection and let it taper off when we no longer need?