I'm 3 dpo. I had a hcg trigger shot on Friday. I am a POAS addict. I too tried one Sat just to see 2 lines. I took one yesterday and it's much lighter. I'm going to monitor to make sure I get to a neg so that hopefully I can get my +. I woke up today with a horrible lower back ache. I slept from 10 last night til 7 this morning. I usually sleep from like 2 am til 11 am. I've read 2 different things. 1- This can be from the shot or 2- You have very early symptoms with your 2nd child. Please give me your dpo symptoms and opinions. I will keep you updated. I would also like to thank everyone for being do nice. Nothing like Yahoo Answers.