Please help!!

Jasmin

Ok so I have a

1 n a half year old baby boy and I’m late on my period. 4-5 days before my period I got a couple very faint lines from hpt and I took a test today and yesterday because it’s my missed period and they came out negative and I haven’t started my period whatsoever and it’s weird I started also getting bloated since yesterday, also the day before yesterday the nurse from a clinic called me to tell me that I have hyperthyroidism so idk what’s going on and why I’m late I’m never late only with my first baby and me and so trying to get pregnant those hearts below