Had my period on the 18th of October till the 24th. My hubby and I have been having lots of unprotected sex in this whole month. Technically I was supposed to ovulate yesterday, but my CM is creamy, not lube like at all. I'm pretty sure I ovulated a little after my period ended, but I'm not sure. Took an ovulation test today and it was negative (so not ovulating today or in the next 2 days) but I've been cramping lightly all day (lower abs all the way to lower back, like light period pains). And I'm also super bloaty these last few days, plus headaches and I once woke up at night feeling seriously nauseous. Would it even be possible to have any pregnancy signs? What else could be the explanation?