Is this normal?

First time mom here and I’m 36 weeks 5 days. I just had an appointment this morning. She said I was dilated 1 cm. Hubby and I tried to have sex, he’s freaked out with the fact that there’s a baby in there so he’s having trouble performing but I came twice. 😍 (not the point lol) but anyway 4 hours later i see this. This isn’t blood and I shouldn’t be worried, right?