Nak, I can't really tell you if it's positive or negative without seeing the test myself, pregnancy tests can be tricky sometimes, lalo na kung madilim or malinaw ang line, di ba? Best thing to do is go to your OB or clinic para ma-confirm nang mabuti, especially since ito na ang fourth test mo. They can do a blood test which is way more accurate, and makakatulong sila na ma-explain kung ano ang talagang nangyari. Alam ko nakaka-anxious ito, pero doctor lang talaga ang makakasiguro ng result, don't stress yourself trying to interpret it on your own, okay? You got this, at nandito kami sa inyo.