I need something more in my life-I want to be a mom

Everyone around me is getting pregnant and it's not happening for me. I'm 27 and all I want is to be a mom. On my 22nd bday I found out I was pregnant but decided we weren't ready so I had an abortion. I'm completely different then I was at 22 and all I think about is was that my only chance. I want to be a mom more than anything and it terrifies me that it won't happen and I threw it away. I have always regretted it, even right after. So I don't feel this way just because we are having a tough time getting pregnant. I would really appreciate some advice. I know this is a sensitive topic but everyone on here always has good advice.