Confused about weight gain

[RMarieClaire]

I lost a few pounds in my first few weeks of pregnancy. I was nauseas but not actually sick so wonder if it was partly muscle weight. Now 23 weeks and trying to work our how much I've put on.

Do I take it from weight at point of positive, or from the lowest weight in the first trimester (4lb less)?

Took mine from booking in weight.
Which was what I pretty much was pre first baby so I imagine what I was pre this baby (only time I'm ever weighed!)
If I were you I'd take from your point of positive

Everything is done from your booking in weight. Which is a bit silly, I put on 1.5 stone in the first 12 weeks (eating to combat sickness - only thing that helped!) so my bmi went from healthy to overweight even though it wasn’t the weight I’d maintained for 3 years beforehand