Help ladies !!

I've been trying to conceive nine months now and this month has been really weird...I am two days late gassy about 5 days now* tmi sorry* I have pains on both left and right of my lower abdomen mostly the right side .... frequent urination like every half hour -hr it's annoying... and 3 neg test ?? I took one 12dpo suspected ovulation I did not test for ovulation went by my app prediction ... and I took another the morning of my expected period and this morning now 2 days late..... what can be causing this guy's anyone experienced anything like this ?