If you have three LOs how did you decide to try for the third. I thought I was two and done but recently I keep thinking more and more that I would like another one. My DH wants to have another one and says it is up to me. One concern for me is that I turn 35 next month and if I do decide to have another one I would like to start trying in a few months because this age is the latest that I would want to be pregnant. I have and almost three year old and a 4.5 year old. I feel like I am going crazy because I keep going from being certain we are done to wanting another one. I was even looking at maternity clothes online today.

Any advice?
Re: Trying to decide if I should try for a third LO
we've decided to go for #3. Excited in some respects and nervous in others! If you scroll down the posts, look for the "mammas of 3" post that I added last week or so. good advice from some ladies there!
We're on the fence about a third child, too. I waver back and forth on this constantly. We always imagined that we'd want 3 kids and, in some ways, I don't quite feel done yet with two. On the other hand, I had 2u2 so I'm pretty worn out. Things are finally starting to get easier now that they're both a bit older and I'm not sure if starting all over again is the best idea.
If we do have another, I think I'd like to wait until my kids are both in school at least part-time - so maybe one in preschool and one in kindergarten. I think that will make having a newborn again seem more manageable.
I pretty much always thought I wanted only 2 kids, but immediately (as in while I was still in the hospital) after having my daughter (2nd child), I was just struck by the feeling that I wanted 3. SO felt the same way within a couple months. We waited for two years to see whether this was something we really wanted to do and our feelings remained relatively consistent. I turned 35 in December and am due in May. My son turned 5 recently and my daugther is 2.5. For me, it did help to think about all the pros and cons over a period of time, as well as observing some families who had three kids.
I could have written this post myself! I am 35 with 2 boys; 4.5 and 3 years old. My hubs and I keep going back and forth, as well. I know exactly what you're feeling! Some days it's certain we are done and other days it's certain we'd like another. I know I won't regret it if we add another, however, I feel like I may in the future if we don't.
Keep us posted!
Good luck!