Which route for ttc?

Hi all

Right so this was our first month of deciding to not actively stop another baby lol. Well it didn’t happen this month and I am gutted in all honesty and it’s made me realise I definitely do want another.

But - I don’t know the best course of action. With my first two I fell pregnant really easily - my ds I fell pregnant with at 22, complete accident! My daughter was planned and we either caught first or second month and I was 25.

However, I’m now ten years on from that and know it won’t be that easy. I’ve just turned 35 and the only reason I’m feeling a bit more hurried is that my kids really want another sibling now and I don’t want any bigger gap age wise if we could help it.

Would you choose to take quite a laid back approach and think the more fun way will probably aid things or given mid thirties do you think bbt charting with or without opks is the way to go and be methodical?

Thanks