Maybe, baby?

Maybe I'm crazy & it's all in my head. Or maybe there's a possibility of a baby!? 
​I have a few apps that track my period & two of which say I should already be started. 1 says 4 days late and the other says 2. Glow says 5 more days until my period. But this is only my first month with glow so I'm not sure if it's caught on with how my periods are yet? I never get cramps on my period or around it, but about 5 days ago I had crazy cramps...1 night they woke me up from sleep and almost made me want to puke, I've also been gassy, and annoyed with everything. Last night I couldn't even eat dinner in the same room as my husband because the way he was chewing was like nails on a chalk board to me....Lol. Last thing I promise...Glow told me to do a self breast check last night, so I did...I noticed they were more round and full, I'm a 32A so I could definitely tell the difference..No soreness, just like a handful. Please someone, tell me I'm not crazy...Is anyone else experiencing stuff like this? Or has? We've been ttc since 2013...So I try not to get too hopeful when I'm let down month after month...but I'm feeling hopeful this month!??