Concerned- not gaining weight

I’m 36+5 with my second baby. With my first I gained weight up till the very end, but I just now went in for a checkup and I gained only 1lb over the past 5 weeks.

According to my scale at home I actually lost 2lbs this past week…(I use the same scale and weigh same time of day in bra/underwear)

How can baby be growing if I’m not gaining !? I don’t get it.

Should I be worried?

Also- with my first I had low amniotic fluid towards then end of my pregnancy and had to be induced because of that. Im worried that is the case now and that’s why I’m losing weight!

*Important to note- I’m not in USA and in my country it’s much harder to contact my Dr to inquire about this and such.. I don’t have his phone number/email and the secretary said he is out today.*