pregnancy glow what does it mean

For the past 4 days I've been spotting brown blood which got slightly heavier but still only just showing up on the pad which I was wearing all day I'm still spotting today but only very very light brown blood I've been feeling really low thinking I'm going through a miscarriage but tonight my fiance made my night by telling me I look sexy and glowing and that I look pregnant because I look happy 😊 I don't know what he is seeing as I don't see anything different when I look in the mirror hopefully it is there and he's not just saying it to make me feel better I'm between 4-8 weeks unsure as never not a positive till 18 days late