I finally received a message back from my RE. Here is what she said:
I know that the past couple months have been hard on you emotionally. Although weight/BMI does impact implantation and pregnancy potential in IVF cycles, a 14lb wt gain is unlikely to significantly affect your chance for pregnancy especially knowing that your uterus has achieved pregnancies in the past. I'll forward this to Jill for a possible map-out if you wish to move forward w/ the FET.
Knowing that Dr. Wu is comfortable moving forward, in addition to most of you saying pretty much the identical thing, we are going forth! I am just waiting for my phone call from the nurse to go over our plan. I assume I will be starting bcp's tomorrow, which I conveniently have on hand already :)
Now, time to kick my butt into gear and start eating right and hitting the pavement for my 10k! Nothing like a little motivation to get you going.