I knew I was pregnant and not mad!

So I've only been using glow for a month. Early jan ( very soon after conception) I felt different I knew I was pregnant. I had a weird fluttering in my lower belly, tasted metal, felt queasy and couldn't get enough of boiler eggs ( runny yolk)
​4 days before my missed period I got a positive with " clear and simple" but it was only faint. Got many negatives. Day before my missed period I did a clear blue and it said " not pregnant" so convinced myself I wasn't. Day after my missed period I tested with tesco own very faint hardly there line I thought it was an evaluation line. So did another clear and it came up pregnant 1-2 weeks. I came off the pill7 months ago and last month was my first proper period on time and regular 
​Good luck everyone xxxx