Is it normal to get your period multiple times in one month after having a baby. Some side info: Got…

Is it normal to get your period multiple times in one month after having a baby.

Some side info:

Got my first pp period from March 3-6th

SO & I have been dtd and in the moment unprotected used the pull out method on March 14th.

Well today (March 17th) when I woke up this morning after peeing I wiped and there was blood. Light so far. And a little in the toilet.

What could this mean?

I'm really hoping it's a second period and not like implantation bleeding. (I don't know when or how much is supposed to occur. I didn't have bleeding with my first)