I conceived no 2 when no 1 was 8 mths old. Always been very happy with age gap. It is hard at 1st tho. I don't really like all thisstuff about missing out on having time alone with 1st born/missing the 1sts etc, cos when you have 2/3/4 you never have time alone with these subsequent kids, yet they're no less important. iyswim
If yuo're broody then why not? If you're a worrier, you'll worry no matter when you do it. Might as well get it over & done with. Of course you might not conceive for a while anyway