stretch marks?

Is this the beginning of a stretch mark? I swear they weren't there yesterday. One looks like a bruise and the other looks like a mild hicky. They don't hurt or itch and isn't dry. I'm 30 weeks and my belly isn't hard and tight yet. I've been used md palmers cocoa butter daily after I shower since 12 weeks and have been good so far. My mom and sister both got stretch marks but they were both very skinny before kids. I've never been skinny and I hoped that would make a difference. I guess I'm about to start applying it twice a day now.