H E L P! *FTM*

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So I'm 39w1d and I have no idea what to feel or expect. I haven't had any contractions that I know of or that I've felt. UNLESS this counts: my upper belly like right under my boobs mostly on my right side will get really tight and hard then it goes away, totally painless. Not sure what that's considered? Lol. I went to the dr on Monday 8/7 and was told the baby dropped and was extremely low positioned where he felt her head and she should start pushing down any day now but my cervix was still closed. But what are and aren't contractions?! Help! Lol