Upset

I have been ttc for about a yr and a half now.i was previously on birth control since I had my daughter in 2008, I started with the pill but then changed to the mirena but after a while it started bugging me so I ended up going with the implanon which was good for up to 3 yrs.i only had it for about 1 yr and 9 months before me and my bf decided to try for baby #2.i got it removed in October 2013 and to this day nothing.every month AF comes on the 19th but this month is my first time since I had the birth control removed that I was late.the days passed and I let myself get a little excited thinking that this could be it.to my surprise I started today.5 days late.im just so upset right now, like I said I let myself get a little excited.now I'm thinking of going to get a check up and make sure everything is ok but I'm scared.i really want to have another baby, I swear everywhere I go I see babies and feel like they're all starting at me.to top it off there is 3 new babies in our families and as much as I love them it stings a little knowing we've been trying for a while now and nothing.any advice on what to do or what I can do?