Hi Ok so I had my implant removed on the 18th Jan '12. I bleed 2 hours later and is last for about 4 days very very light though. I bought some OPKs and decided just to do one for no apparent reason on wednesday.... Well I had 2 lines on it - the test line very faint... If my cycle returned to normal Im due to OV on the 1st!! so I did a test today and there was only the control line! When do you get a positive line??? Do you think I already ov'd?? when I got the line on wed??? Thanks in advance.