Please help!!! Confused!

As

So, I’ve been having very dark positive opk’s all week. I took a pregnancy test this morning, after a few minutes, nothing had happened. Then a couple minutes later the purple mark started moving up the test and left this result:

It appears to be very positive but I don’t know if it is valid because it did not move up the test straight away? Please help! I don’t know what to think 😩