early pregnancy questions (tmi)

Mo
Hi everyone. 
I know you can't tell me if I'm pregnant or not. I'm waiting for my husband to go to work in a hour so I can run to the store (don't want to freak him out before his graveyard shift)
Currently 12dpo healthy 22yo with no BC and regular cycle. 
I've just been experiencing some strange things as of late that I never really took into account until just a few hours ago. 
I was on honeymoon 2 weeks ago when I was ovulating and we had sex everyday and he finished in me. 
And this past week or so I've been horribly tired. Sleeping in in the morning and taking a nap everyday at 1 and coming home tired (I'm a nanny)
(TMI WARNING sorry!)
I had a strange snot like discharge the other day...-yellow-green ish and kind of the consistency of well snot. 
And just now I'm laying in bed and on my left side of my lower lower abdomen I felt this weird kind of painful but not really more like annoying feeling on just the left side. And any kind of pressure this past week on my lower abdomen has been discomforting. 
Any wisdom would be appreciated. 
These things are things that have never happened before AF is supposed to arrive (on Sunday 🙄) 
I've also got butterflies but not like I feel so amazing and in love and happy but like actual twinges and tickles and pricks in my abdomen. Strange no?