2 periods one month help??

Al

So as the title says I’m having two period this month I started on the first and ended on the 5th and then I started spotting on the 16th I was hopping it was implantation bleeding but now it’s turned in to a whole blown period 😞 should I see my doctor about having two periods in one month only 11 days apart?? I’m a breastfeeding mom and I don’t know if this is normal. I’m also sick at the moment so i dont know if that effects it ..