I was supposed to be 5 months pregnant but there was no baby...?

I understand your worry with your current pregnancy....What you had last year is called a "missed miscarriage"...you have no symptoms of miscarrying...your body tends to think you are still pregnant..but baby quits growing, loses the heart beat, etc....and since your body did not respond the way it "should have", a medical abortion, also called a D&E has to be performed to remove what was left...otherwise you can get an infection and/or it can affect your ability to get pregnant. The fact that you are pregnant again can be attributed to having that procedure...it kind of "preps" your body for pregnancy....I should know...I had a "missed miscarriage" in 7/08...told I probably would never get pregnant again (I was 39)...I am now looking at my sleeping 9 month old miracle...I worried my first 2 trimesters about miscarriage...try not to...being pregnant is fabulous..and I missed out on some much worrying! After your 16 weeks you can sometimes hear the heartbeat with a home doppler...I bought mine at Walmart for $20...help my nerves SO much! Best of luck!