Thanks guys. I've got a CB digi as a back up but I don't want to blow it as I'm only 9DPO!! besides the IC apparently pick up from 20mIU - CB digi is 100mIU.
Think I'll wait until the 1st Sept before using the CB digi.
Gemini, although its the first time I've seen a faint line on any ICs that I've done, I don't want to get excited yet. I've read on t'interweb that sometimes if its faint and stays faint it may not stick - but its still early days yet x x