I Haven't Had A Period In 6 Months I'M Lactating

I haven't had a period in 6 months I'M lactating white sweet milky discharge from breast frequently peeing can feel something rolling around under my belly button have all symptoms of being pregnant. Now here's the catch I had a tubal 6 yrs ago but I don't think it worked. Was abstine for six yrs meet husband who had been abstint for ten yrs gave a positive test then two negative. They were from the dollar store though. Also I had used meth before test and took it late in day so my question is could I be pregnant and if not what is rolling around in my utrine area