Aww, I know how scary yan sa first time moms! A red bump since birth could be a few things, hemangioma, birthmark, or just some irritation, pero honestly, kailangan mo talaga ng check-up with your pedia para ma-assess niya properly in person, kasi need niya makita kung paano exactly ang kulay and texture nito, okay? One of my mum friends had something similar sa baby niya and the doctor said it was nothing to worry about, but better safe than sorry talaga! Let me know what the doc says, and I hope baby's okay.