Should i be worried??

Shampree • Mom of 1 daughter and 1 son! Angel mommy of 2 💛💙
I just found out that I was pregnant a few days ago and I'm around 4weeks (estimate). Well I woke up and went to pee and when I wiped there was light pink on the tissue. It wasn't a lot, and it went away for maybe an hour or so, and now its back but barely. I'm starting to get worried since I didn't experience implantation bleeding or spotting with my daughter.