Stretch Marks

Olivia
Can someone tell me if you can feel stretch marks coming on, if you see beginning signs and if you see red lines beneath the skin but skin is still totally smooth is that a stretch mark? Will I just wake up with them one morning or will I see them coming? I'm so confused I'm at the end of my long haul and I have been spending a ton on cream and lotion and I'm just curious I don't think I see anything yet but I saw these 3 marks on my belly looked like it would if you slept on your side but I wasn't sleeping at all.