This is good right???

So has anyone has this problem when pregnant? Sorry tmi but I've been constipated really bad the past few days and when I can go its only little bits but it feels like I really have to go. Also my nipples are a little sore but have been tingly for a week or so now, I'm nauseous with stuff that didn't bug me before, I'm tired a lot and can't control my emotions. Af is due in 5 days on March 15th and this has never happened before af before. I also had 2 very very small red dots when I whiped about 2 weeks ago. This is good right?