When to do the FET?

After the meeting with the RE, I've been feeling optimistic about our chances of having another baby. DH and I have been planning the FET for May. The plan is that we can do FET(s) one embryo at a time, in May and June. If they're not successful we can do a fresh cycle in July before he leaves for 6 months in August. Then I can push on with futher treatment while he is away if necessary. Basically I have the attitude that I will just keep going with IVF until (hopefully) it works.

But knowing that DH is going away for 6 months has been really hard. In a way I have already started to grieve his absense. It has put a bit of pressure on our relationship, and we're having to work hard at making time for ourselves as a couple. I'm really starting to wonder if starting the IVF process just before he goes away is really the best option. I'm only 32 years old. The Doctor doesn't think there is only problem delaying it until DH gets home if I want to do that.

I've started to think about the various scenarios.

Scenario One.
I fall pregnant in May/June or July.
DH then leaves for 6 months.
No doubt it will be very hard to have him away.
If I feel sick or tired it will be hard to look after my little girl.
I won't be able to do some of the things I currently do with my little girl, like lug her around on my back.
I probably won't enjoy the pregnancy as much as DH wouldn't be there to share it with me.
When DH returns we would be right into having the second baby. It will be a baptism of fire for him to come home and have a second baby right away. There would be no settling in period for us both.

So they're all the negatives. The positives are that of course I would be thrilled to be pregnant again.

Scenario Two.
We do FETs in May and June and they don't work. I then do a fresh cycle in July just before DH goes. I can imagine that my stress levels would be through the roof as IVF cycles and Deployments are not very compatible.
The worst thing would be that if it doesn't work, I would feel incredibly scared that it won't work for us. And i'd be on my own for 6 months with that fear.

Scenario Three.
I delay the FETs.
I can spend time chasing around after my little monkey while DH is away.
I can enjoy a glass of wine while DH is away.
If I decide that I want to try while DH is away, I can always go through a FET or two.
But otherwise I can just wait for him to get home.
I think this would be the least stressful option. Financially it would be better as it would give us a chance to save more for the IVF.
I think if I did fall pregnant when DH returned it would be a nice age gap between kids (2.75 years).
I think I would enjoy the pregnancy a lot more.
And if the FETs didn't work, I could do a fresh cycle pretty well.

After typing all this out, I think it's a no brainer. I've decided that I'm going to delay the FETs.