Looking for a Series John/Sherlock Alpha Omega fic
I think this was a series of 3 stories. It involved an omega but bad ass John and an alpha Sherlock. They had serveral children together (a daughter Teagan, a son, and twins Faith and Phineas I think). John's heats were very intense because he had been on suppressants so long and it resulted in an almost miscarriage. Sherlock still jumped off the roof but John was pregnant at the time with the twins. Mycroft gets together with an original character that is the "typical omega" and they have children. John dies at the end of the series. First fic I think deals with them meeting, having children, and sherlock returning. Next fic I think is a bunch of short stories that cover as the children age and is where Mycroft and orginal character get together as well as John's death. Last fic I think covers Sherlock's death and the kids remembering the past. Phineas did drugs and was very like Sherlock. Teagan married Lestrade's son and other son was an omega I think. I think it was on fanfiction.net but I'm not sure.