Hello Doc, I M 34 Years Old And Mother Of

Hello Doc, I m 34 years old and mother of one baby. while planning for first baby due to pcos I was prescribed b long f & ubi q... i am Planning a second child soon. So can I again take tab. B long f? If yes, pls prescribe dosage.. My weight has increased considerably post first pregnancy. I was 50 kg now 63 kgs..pls help..