would like opinions please...is this positive?

I am around 4 days late for AF...I normally would have it exactly 14 days after a positive ovulation test. It is now 18 days after ovulation test and was too nervous to get excited or hopes up. I can see a positive line on this but I'm too scared to take my own opinion. Please help. We were going to go get semen analysis done this month if I got my AF! Is it too faint for being around 18dpo? Should I be worried? Thanks in advance!