First response rapid result.

So I have heard these are the least sensitive tests and to only use them on the day or once you miss you period. My ovulation day was 5/29 my period was to start today. I took a dollar tree test early in the week, on Wednesday and got a positive. I retested to yesterday just to be sure and I got a super positive. Like the test line was way way darker than the control line. I am already feeling sick. Way sooner than with my previous two.

My so thinks it's twins? He has several in his family. Any thoughts? Any experience with this.