HELP: In need of some encouragement & advice ?

Lately I've been feeling depressed and sad.. Maybe it's my hormones going all crazy maybe it's just everything hitting me at once. This is my first pregnancy and it's with my ex-boyfriend. We had one of those "I miss you" type of nights and well weeks later I found out I was pregnant. I've always want to get married first then have a baby. Yes I love him. But I'm not in love with him...and I never really saw myself being with him in the long run and now I feel forced to be in this relationship I don't want to be in. It makes me sad because I see everyone in happy relationships with someone they are in love with or married couples on here or just around me expecting their first child. Creating beautiful announcements with their S/O. And it really brings me tears because I've always wanted to do that with the one I'm in love with and going to spend the rest of my life with ?. Now don't get my wrong here I know this is a blessing and I absolutely love kids and I am happy that God is blessing me with my baby. What gets me down is just the circumstances of how it's happening. I don't believe in abortions(no offenses to the women that have had them) and I didn't want to get rid of the baby because of the choices I made. I haven't even told my dad yet (my mom knows) but  I just feel like such a disappointment to my family because we come from a Christian background and I know people are going to talk and make ugly comments about me having sex outside of marriage and how it's a sin etc. etc. Excuse my venting I just really feel alone in all of this...Please no negative comments I would really appreciate just positive encouragement and advice....please  ?