starting Bc , for 3 months to ttc ?!

Vonnie
So ive been ttc for about 3 years now , drs say its my weight i have 2 children already and they were both concieved when my weight was under 160 my son i weighed 145 and my daughter i was 160 , they are now 8&9 yrs old , my weight now is 208 so my dr put me on Bc while i get the weight down she said to try Bc for 3months and then give it up to 6 months after that to concieve , i hope this will work ! Has anybody every did this ? Got on bc for a couple months then stop to ttc ?