Please, I need advice.

Over the summer I found out I was pregnant and my boyfriend and I were ecstatic! We did everything we could to make sure things went smoothly and we had such a wonderful support system. I was three months, almost four months pregnant when we went in for an ultrasound and found out that we had lost the baby. I didn't miscarry but the baby didn't have a heartbeat. It's been two months now since this has happened and still have yet to come to terms with this. This has been heartbreaking and I have no idea what to do to move past this...any suggestions?