No progression

My first test was last Tuesday 10dpo I posted my lines a few days ago because I didn’t think they were progressing much. Today is 16dpo, period was due yesterday or today. Having period like cramps. Have had multiple positive digitals and drinking huge amounts of water the last couple of days. Sometimes I pee early in the morning and then go back to sleep and test when I get up hours later and some tests toward the beginning were just fmu without peeing early AM. Moved my doctor appointment up to tomorrow because I’m so anxious and my line is lighter today and definitely not doubling every 2 days. Praying for a miracle.