I had some wraps delivered over the weekend but am now really concerned about them. Most of them are newborn size or XS. I am planning on using them over muslins and then over small terries until I need to buy the next size up. Well this morning I have tried them out on a teddy with just a nippa'd muslin and on nearly every single wrap there's a gap around the legs. Surely this means that all and sundry is going to leak out?! Is this right or not? Or am I back to square one again!