Tam, lucky you to not be nervous and DTD as and when you want. I don't think you need to ask a doc, I think the only guideline is not to DTD if it is painful, or if you have any spotting/bleeding. So you're fine (and have a lucky DH who is getting some unlike the rest of ours )

Hehehe Tam I bet when you do start telling people you're pg they'll all respond 'oh, I already figured that'!!