I had originally planned ahead like you’re doing. Several years before TTC I decided we would first start in late [name_u]June[/name_u] so I’d have good chances of having a [name_f]February[/name_f]/March/April baby. But when push came to shove we had all our preconception ducks lined up about 6 months early so we started TTC late [name_u]November[/name_u] and got pregnant on the first try and so H was born late [name_u]August[/name_u].
I actually REALLY liked that spread. I essentially hibernated all winter when I was super sick. I do agree with @katinka that being as sick as I got and dragging on for as long as it did, first trimester during the nice months of the year sounds awful. Full winter was actually pretty serendipitous, if dismal. It was [name_f]May[/name_f] by the time I started to feel better, but that was just when I really wanted to be outside anyway. And I had a fabulous third trimester all summer. I didn’t suffer from swelling or anything, wore big T shirts and my husband’s swim trunks and basketball shorts so I didn’t use our maternity clothing budget. We don’t have AC in our home and it does get pretty hot and gross during the summers here, but with fans I still look back on it as a wonderful time and I don’t think I suffered much in the heat despite my entire last trimester taking place during the super hot months. The one thing I was thankful for was that it got mild JUST in time (by a couple days) for H to be born. I had a homebirth and I did get antsy thinking of birth during a heatwave.
I didn’t physically carry A so it’s a different story but he was an early [name_f]April[/name_f] baby and this summer weather with a newborn has been really fun. That was, after all, my initial preference, and it does seem like a wonderful time to be born when all is new.
But I actually like the summer birth enough to try for it again. We plan on TTC in about 3 months and if we were to get pregnant right away it’d be a late [name_u]July[/name_u] baby, even doing home birth again and everything… But I have some new health concerns that might make it more difficult to conceive this time around, plus planning as I did last time with the idea in mind that it might take a few months of trying anyway… going into the Fall or [name_u]Winter[/name_u] months also feels doable.
Really I think anytime you conceive will be OK, but you can always initially try for one time and see if it works out how you would have liked it.