only if they knew the truth

I wonder if my family knew the truth would they ask me still every time they see me at I pregnant I literally get a period every 3 weeks my doctor told me that I'm not suppose to ovulate tell 11 days after my period with my period starting at day 1 but I get it every 3 weeks so I don't but when I went back they told me its normal sense it's every three weeks but Ik n my boyfriend know that it's not likely for us to conceive with me having a period every three weeks I told him I can get on the pill because my cousin got on it to regulate her periods idk what to do I just want my family to stop saying I'm pregnant every time they see me