Most mums I know found the leg numbness sorted itself out within 12 to 24 hours after the epidural wore off, so a week in does sound like it's taking longer than the usual timeline, that part I won't sugarcoat. A friend of mine actually had numbness and pins and needles that dragged on for several months postpartum, and she said it just resolved on its own eventually, but it was genuinely worrying while it was happening. From what I've generally heard, it can sometimes be nerve-related from the delivery itself rather than purely the epidural, and in rarer cases it has taken up to six months for full sensation to come back, so try not to panic but also don't just wait and see indefinitely. Honestly, a week with no improvement is the kind of thing your doctor really should know about, please do flag it at your next check-up or even go sooner, because a specialist can rule out anything more serious and give you proper guidance specific to your situation.