Is she early stages pregnant? Or is she looking a bit rectangular

Noticed around 2 weeks ago a blackish spot inside her and slowly started growing and then was sure was pregnant. It says once she starts getting a rectangular shape shes close to giving birth like a week range…I didnt notice when she possibly got pregnant, so unsure if shes close to due?

She's definitely pregnant but if she's actually close to birth can be questionable. Yes, from the front, she looks to start squaring off (the second picture shows that better). But the thing with mollies is, that they can hold on to that for much longer from what I've noticed with my own molly females. But if you wanna be sure, I'd say, keep an eye on her...