Find one near you and ask about "Post-Abortion" counseling - most of the centers offer FREE sessions and they are really really helpful.
I also am going to go out on a limb here a little and tell you that I am very worried about you - at 16, you really shoud NOT be with a guy that is 26 - that's just way too big a gap and you should be living life as a 16 year old - not an old married woman or something. If he was a decent guy, he wouldn't be messing around with someone so much younger than he is. But that's just my opinion, and I don't really know you - but in writing it just sets off alarms for me.
Please do look up a center near you and contact them, they are only there to help you through the rough spots.