When you have sex for the first time, it is not uncommon to bleed a bit for a couple of days, so i wouldn't worry too much about that.
As far as the lump goes, it could be a bit of swelling from a small cut or abrasion. Did you use a condom and plenty of lubricant? these things will make sex much more comfortable (and safer) especially the first few times.
However, we aren't doctors, so if you keep experiencing the bleeding and swelling, be sure to make an appointment with your OB/GYN to get it checked out.