Pretty sure I'm pregnant, what do you think?

Lets start off by saying my period is irregular. Normally before my period my knees get achy, im gassy and bloated. According to glow I should be starting next Monday but I haven't gotten achy knees but I've had the following.

Extreme fatigue

Frequent urination

Heavy/full boobs

SORE nipples/spotting of one nipple

Cravings for sweet potatoes which I don't normally like.

Indigestion.

Bloated.

Increased appetite

I know I won't know till Monday but am I just freaking out ? Im married and have two kids already but every pregnancy ive had have been totally different. As soon as I started peeing constantly I noticed all these other symptoms and I'm thinking my "last period" was actually implantation bleeding. Helllp!

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