So I just used my opk and it came up with a smiley face...yay! I didn't expect it for 23 more days so I was really surprised when I saw the smiley. When I ejected the strip the control line was there but there only was a super faint test line. That makes me question the positive. Are the digital ones interpreted differently? Anyone else experienced this? Should I trust the smiley? I plan on testing again later tonight. TIA!!!