Symptoms????

Jessi
Hi, my husband and I have been TTC for awhile and I am on my 4th day of being late. I'm sorry I don't know all the abbreviated terms. But I've been pretty regular the last year and have not missed a period until now. We've been trying for the last 5 years but I was really over weight and didn't do anything healthy for myself in my 20's. I'm 30 now and have been clean eating and exercising since 2014 and dropped about 45lbs since September of last year. Lately I have been feeling very dizzy thru out the day, been urinating more often, hungry for foods I used to hate, and I have been more tired then usual and my nipples are sensitive.. I haven't been stressed, everyone I know is either pregnant or just had their baby, so I've been getting alot of baby luv, am I tricking my body into thinking it's pregnant? Is that possible? Or could these signs actually mean I might be. I don't want to get my hopes up but I think I have enough to be concerned. Any advice for what I'm going thru? Thanks ladies.