Weight gain

Val • Queen to my husband and best friend to my 4 yr old. Excited for this next bun in my oven.

So I need some advice I’m 4 weeks pregnant with my second child and thinking everything is going good except I have been feeling heavier than normal, I figured it was too early in the pregnancy to even fee this way but I weighted myself and it turns out I have gained 8 lbs. am I going crazy is this common? Have others gone through this? I know this is my second one and I know my body will acclimate faster this time around but 8lbs.? Really??? I’ve put myself on a no carb, no sugar, no processed food diet cus I’m scared to get bigger or gain more than I should.