Congratulations to hinky and all those with their precious BFPs

Hello nest, so sorry to read about your problems ttc, and what a very insentivite and ignorant consultant you had dickhead
After what I have come to call 'Panic Sunday' a couple of weeks ago, I still can't completely shake the thought of a dc3 for us. Last week I was set against taking the risks of another CS, but I felt ovulation this month and felt sad after DTD when DH, er, withdrew (using withdrawal atm).
My dd2 has recently started nursery for 3 morning per week (every morning from September) and in some ways I appreciate that I will have some time to myself since 2009; I can concentrate more on starting my own business that has been a pipe dream for a while now. I also know that we (speaking financially here) can give our 2 children a great life. We can afford everything they need and most things they want. I can also physically keep up with them and I enjoy having 2 little girls, as opposed to a little girl and a baby. I'll also be allowed to watch what I want on telly in the mornings sometimes and listen to my music in the car 
But today I've hit with surprising jealously at dd's nursery seeing some other mums with baby bumps. I don't know if this is a coming-to-terms process or if it's my actual want to have another baby.
I hate feeling jealous. It's a very negative and useless emotion but I definitely felt it today. I do feel like the time I'm willing to give to ttc again (if we went for it) is running out because:
- I'll be 33yo at least if another baby is born (certainly don't want to get pg after 35 because od increased risks pertaining to 'older' mums, which also increase as I've had one CS)
- Age gaps between children. Looking at 7y and 4y (dds 1&2) and a dc3. There's 3y between dds so I don't want more than 8y and 5y gap. That's too big for me.
- If I got pg between April-November, there would only be one more school year between dd2 and a dc3 than there is between dds 1 & 2.
My mind is wandering now. Basically, I just feel very torn between what to do.