Anxious to start

So husband and I decided to try for baby #3. I am conflicted of when to start. We have been very blessed and both times we have gotten pregnant it has happened in the first month. Now I know this might not be the case this time. So here’s where I’m looking for no judgment just some opinions . . . We have an August baby and it’s been difficult navigating school since she is the baby of the class. So I was originally going to wait till December to start trying so that the earliest the baby would be born is September (oldest in the class). However I’m getting antsy and obviously just want to be pregnant. So don’t know whether to stick to december or fuck it. But I will say this youngest in the class has been causing me a lot of anxiety. So idk. Clearly an over thinker over here. 🙈