Is this triphasic?

We've been TTC for 7 months. I've had 2 miscarriages. One at 6 weeks and the other the baby stopped developing at 6 weeks and a D&C was needed at 10 weeks. I've been charting since then and it's my second cycle post D&C and we've just began trying. Does my chart look like a pregnancy chart to you?

http://i161.photobucket.com/albums/t204/xxthedarksidexx/chartgraph_module-1php.png

also, does it look like implantation occured at 4 dpo? It does make sense as I have a 10 day luteal phase but does it mean I can test earlier since implantation occured earlier than 7-10 dpo?

Thank you!