Faint pink 2nd line on pregnancy test.

Hello, It is day 28 of my periods today, my cycle is usually 28-30 days of length. I have noticed stomach pain in upper as well as lower abdomen and I feel very exhausted. I was diagnosed with PCOD, my doctor is helping me conceive. Before 4 days I finished taking SUSTEN SR 500, and now I am on Folvite. Out of curiosity I did a UPT yesterday evening and I noticed a 2nd line which is very very very light. Again today morning I repeated a UPT, I tested on two devices at the same time, the first device showed a very very light 2nd line within 5 mins of testing, while the other may have taken 6-7 mins to show a second very very light line. However, the second lines on both the devices today are very light compared to yesterday. My LMP was on 24th October. Please let me know what these results mean and what steps I may need to take. I have attached yesterday's as well as today's result for your interpretation. Thank you