Help reading opk strips :/

[bellaboo1992]

Hi ladies,
Just wondering if anyone can help me with trying to read and work out these bloody cheap ovulation test strips, clearblue (although a total rip off) made life a lot easier lol.
I'm currently on CD20 if I count day 1 as my first bleed (I had a chemical last cycle unfortunately and bled 2 days later than when af was due)
I usually ovulate on cd13/14 tops and can always tell by how I feel at the time.
I feel like ov has come and gone but I'm just not sure whether these strips are giving me the indicator I'd hoped for. I've had lots of ewcm, back pains and the usual you'd associate with ovulating, starting maybe 3/4 days ago.
I've included a pic of my tests for you to judge for yourselves. Some are old and dried out and the newest is darker as I only tested around 15 mins ago :)

[Mrsjones17]

Your bottom two look positive. The test line needs to be as dark or darker than control line

[bellaboo1992]

Damn lol I haven't bd'd since Thursday

[MouseLove]

None look positive for me. The second line should be really dark and just as prominent as the other HOWEVER I got my BFP on a cycle where I Bd 5 days before my ovulation date. So I wouldn't worry too much if you BD now you should catch it. Once you get a positive OPK you have around 12-48 hours before you MIGHT ovulate. Remember it's not a positive test for ovulation. Only an indication of a surge. You can also get possible OPK right before AF is due.

Good luck!