I currently own a cheapie ebay cup. While I like using a cup, but this one seems to be very soft and I can't always get it to pop open and seal correctly. The cup I have is "size 2". I am sexually active and have had a child via c-section, although I did go through labor and he ended up getting stuck while crowning. I'm uncertain about what size to get for this reason because all the descriptions say size 2 for after vaginal birth. This is the cup I have in size 2 or large, whatever they call it. I am interested in the Meluna, and Fleurcup. Should I stick with the large size?