bf for 13m haven't fed for 7m now and periods all over the place or not at all, is this normal?

[starsandstripes]

Ds is now 20m and I think since he's been born I've had two very light periods. In this time I have taken a pregnancy test about 5 weeks ago, the day I went to the dr complaining of being overtired and also asked to be put on the pill. He told me not to take the pill until I have another period but it still hasn't come! So probably haven't had a period for maybe 9-12 weeks can't really remember. But If I was pregnant why didn't it show up when I tested 5 weeks ago?? (I've ordered more tests arriving tomo)

I've put on weight
Am always tired
have irregular periods
Have had bloods taken for anemia (came back normal)

What the hell is wrong with my body? I have two ds's don't really want anymore children.

Posted this in health but thought I may get a few more replies here! Hopefully