Could I be pregnant?

So I’ve been having sex regularly, not protected. I would like to have a baby. I normally start my period from the 10-13th. Well this month I started on the 5th, it lasted 4 days. I normally have a 5-6 day period. It wasn’t heavy at all. When I got off of it, like 3 days later I started spotting. I’ve been super tired like I can’t stay awake, I’ve been eating everything. I even had sex the other day and hadn’t been spotting but when we were done i got up and there was light pink blood on the sheets. Can someone tell me what they think is going on? I’m just as confused as I sound. Lol