I guess I'm in a similar position to BG - I had a stim cycle in November/December, developed OHSS, couldn't have a fresh transfer and had to wait to recover for a FET cycle.

The first time this happened, I had a five week break in between, felt physically and emotionally ready for the FET, and all was well until I miscarried just before 9 weeks...

This time, we decided that it would be a good idea to get my FET cycle in before work went back. I had a break of just over three weeks, before jumping into a FET cycle. Hindsight is a beautiful thing - I would have to say that I was most definitely NOT ready for a FET then. I lost that baby just on 4 weeks - low level of HCG in final blood test, and a devestating weekend spent going through the physical process of miscarriage.

I've been debating whether to jump into another FET in February, or to wait until March. We're choosing the wait until March option, just to make sure my body has a chance to fully recover - it's been two early miscarriages, a stim cycle and a bad case of OHSS all in four months.

Mentally, I feel good about going into another FET straight away. Physically, I feel like I'll probably be ok when I get to transfer - but there's that small seed of doubt that can't really be shaken away. What if I'm not fully recovered physically? What if this transfer doesn't work at all? What if this transfer ends in another early miscarriage? While that doubt is there, I think it's a damned good idea to hold off on the FET!

Harvest may not interfere... but if you find that the cycle doesn't work, you'll always wonder, always doubt. As frustrating as it is to wait, I think you'll be better off doing so. Make sure you are in the best state physically and mentally before you go into the FET. The early stages of pregnancy are also very draining (I developed chronic fatigue syndrome about 7 years ago - I've had three instances in the last 12 months where I've been convinced it's coming back, only to find out I was pregnant), even if the cycle does work, it's going to make harvest a much more difficult event than it needs to be.

I don't know what process your clinic is going to use for your FET, but might it be possible to go on the pill while you wait? That way you can stop the pill as soon as harvest is over and get straight into a FET. It's what we did when we needed to manipulate transfer timing. I do natural FETs, but I need to take medications to induce ovulation. It's something my FS does fairly often - just stay on the active tablets until everything is ready to go. I guess it would probably make a truly natural FET a difficult option, but if you are going to do a medicated one anyway, then all it can do is help with the timing.

Good luck with your decision - and if you need some company waiting for a FET in mid-late March, then I'm there with you, as that's when our next one is likely to be as well.

BW