TTC: no luck yet after ecotopic pregnancy.

Okay my husband and I had an ecotopic pregnancy in June 2014. Of course it was devastating and I'm afraid that it might happen again. Any how after my body bounced back we started trying again & I'm nervous because it hasn't happened yet. I really want to have our first child already. The longer it is taking the more I start to think something is wrong with my body. Like as if I'm too fat or something (I'm a thick girl) but I have no health issues like diabetes or anything.  It just makes me sad because everyone around me is pregnant and I haven't been able to get pregnant again. Has anyone else had this problem ? And how long did it take for you to conceive. Any advice for me?