My boyfriend and I have a child together who is 3, and now we'd like to have another.

My glow account says I was supposed to start my period 3 days ago, and last month it was spot on with the days. 

I'm kinda itching with hope that I am so maybe my symptoms are all in my head, but I've had terrible acid reflux every single night, I'm extremely moody, and my legs, back, and stomach are cramping all day. Oh also, I've been very bloated and gassy. My period usually makes my breasts sore, but my nipples and breasts have been hurting for 2 weeks straight now. I just want some advice while I'm impatiently waiting to wake up one morning, bleeding and being extremely let down. I'm kinda new to tracking hcg, and it's too early to try a test. HELP?!