The color of the line is insignificant. Pregnancy tests can only tell you if you are pregnant. The darkness of the line is no indication of how pregnant you are or how far along you are. You can use the brand tests, even from the same box and get a lighter or darker line any time.
The phantom calls that you have recieved, also known as ghost calls is usually caused by either a poor quality phone line, aka has a high amount of noise or foreign battery due to the line or your on an older copper line.
Another scenario is when you are expecting a call and it keeps showing up on your cell phone as blocked, private or unknown. SnagCall â Unblock, Unmask, Trace Who Called you Snag Call â Find out who called with a blocked or unknown number.