Hi all, first-time poster here 
First month ttc and could use a little advice re testing. So period was due 1st Aug, tested then with co-op brand - bfn. Tested 2nd Aug with same brand of test - bfn. And then again today with an early result first response test - bfn. Thing is, on the second day I didn’t wait for ten mins to look at the test, I just saw that the control line had come up and assumed it was negative (Steve naive newbie!) and threw it in my bag within like 2 mins. Looking at it again today (e.g 30hrs later) there’s a definite faint line there - it’s the same width as the control line, just very faint. I know you’re not supposed to look at tests after the ten minute period, could that make a line come up? I’m just worried it took a little longer than 2 mins to come up and I discarded it before I saw it. But then it was bfn on today’s test. So confused! Any advice??