Please Help! Is this positive?

Nicola • I`m a 32 year old teacher from the UK. Had my rainbow baby in September 2017 after miscarrying twice. Had a chemical pregnancy in January and now TTC #2
27 and TTC #1 since August after coming off birth control. My AF has returned and every month I've been doing ovulation tests. I've had a few that were definitely positive (a line darker than the control line) but this month I bought a different brand which I don't think are very good. Please help, do you think this is positive?