Af due tomorrow

AF is due tomorrow, i usually get cramps and really constipated a few days before but nothing! Had a little spotting a yesterday, so I thought AF had shown but nothing since, also I had a tiny twinge like pain just under my belly button? Any ideas? Me and my partner have been ttc for a few months and nothing, but this month I started my prenatals and my partner started taking his wellman things😂 help a girl out please 😂 I don’t think I should take a test just yet as AF isn’t due until tomorrow🤦🏼‍♀️