I start showing at around 8 or 9 weeks this time.(my 2nd pregnancy).
I have the same situation as you @hayz my oldest was born early had a misscarriage now pregnant again, I gained weight fast but I stopped having cravings so now I eat healthy foods yogurt some tuna soup veggies fruit and walk on my treadmill so far I`ve lost 2 pounds and I have 7 pounds to lose to be back in the pregnancy range Im suppose to be in. Just watch what you watch how much your eating and walk
My second pregnancy, my son was in my back, so I didn't start showing until about 6- 7 months.
I started showing earlier with my 2nd pregnancy. I worked at a gym so I did a lot of cycling, inner & outer hip strengthening as well as back stregnthening. I also enjoy pregnancy Pilates and working out on the birthing ball. I'm on bed rest now so haven't done any of it since 20weeks.
I started showing at about 12 weeks with my second. I have just been trying to eat healthy and I have a few dvds I use. I use 10 minute solutions maternity pilates, which is okay for days you are feelibg sluggish or uncomfortable. My favorite is suzanne bowen slim and toned barre workout.