Late period help me please

Hey lady’s, so I’m 16 and sexually active with my boyfriend who I’ve been together for 10 months. My last period came a week early around the 5 June this was because I took the morning after pill I’m the 31st of may just to make sure after a Condom miss hap. Anyways my period is now 14 days late. I’ve taken 3 pregnancy tests from the same brand as they gave me 3 in the box and they all came back negative, but I’m still a bit worried. My breast are sore, which I use to get when my period was due but I don’t get tender breast anymore, I have more vaginal discharge as well. I’m starting to get worried and just want to know if this is normal after taking the morning after pill, as I’ve had my period a week early and now it’s two weeks late. Also Any advice? Why it’s taking so long for my period to come? Or any personal stories roughly the same as mine? I would really appreciate it 🙏