Feeling sad

Well I had missed my period in November and I was having weird symptoms like sore breast and abdominal cramps for 2 weeks non stop. I was always tired and emotional. I would wake up with headaches and nausea and gained 5 lbs in the past month. I was thinking maybe a pregnancy test. But today I started my period and it's the heaviest I've ever had. Now I'm kind of depressed because I've been ttc with my partner for a couple months and nothing's happened.. Should I see someone about this?