According to glow I was suppose to have my af Friday and it didn't come down so I took a test Friday night and it came out negative. My periods have been irregular but I never been late (according to glow <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> when I'm suppose to start) I'm either right on time or early. But I've been having lower abdominal cramps and lower back pain/discomfort, like I'm about to start but when I go to the bathroom I don't have anything just clear moisture. And my breast have been feeling swollen and a little sore (like when you're on you period) I'm nervous to take another test. Cause we've been trying for 5mnths and haven't had any luck. Please help, need advice!