Aw mamsh, I totally understand why you're nag-aalala, after what you went through last year, it's natural na you're extra cautious this time. But honestly, what the ultrasound shows can be tricky to read kahit sa amin, so please don't rely on what you're reading online or what you think you see, your OB is the one who can properly assess kung normal or not ang shape, kasi maraming factors talaga ang considered.
Please talk to your doctor directly about what you noticed and ask them to explain kung bakit ganyan ang shape, okay? I know mahirap ang antayan, but that peace of mind from hearing it straight from your doctor is worth it. Sending you hugs, mama, you got this.