While you may not even be really showing all that much by the end of your first trimester, it’s absolutely incredible how much happens behind the scenes in those first 12 weeks. This is the time where your little one grows faster than at any other time of your pregnancy – from a little poppy seed at 4 weeks to a whole lime at 12 weeks! By the end of the first trimester, your little lime’s bones, muscles and organs have been formed and is even practicing swallowing. WOW!

With all this magic happening inside at super speed, it’s no wonder that the first trimester is so loaded with side effects and symptoms. It’s a physical and emotional learning curve for any mom – be it her first time or fifth, as every pregnancy is so different. For those planning a baby, or those in the early stages of pregnancy, here’s a quick overview of some of the most common symptoms to expect in that first trimester – starting from as little as six after conception.

Light Bleeding: While any sight of blood can be alarming, it’s thought that around 25% of pregnant women experience slight bleeding or spotting during their first trimester.  The most common cause of this is implantation bleeding – a sign that the fertilized embryo has implanted in the uterus. This usually occurs 6-12 days after conception, around the same time as your cycle, so many often mistake it for a lighter, regular period. Of course, for anything beyond light spotting, or pains in your abdomen, your health care provider should be consulted immediately.

Sore Breasts:  Boobs are extremely hormone sensitive and because of all the progesterone and hCG in your body after fertilization, your blood volume increases which makes your breasts swell. The good news is, this swelling normally fades after the first trimester as your body adapts to the changed hormone levels. Now’s a good time to start thinking about maternity bra shopping though – you’re gonna need a bigger bra!

Discharge: a thin, milk white discharge (or leukorrhea) is pretty common in the first trimester too. It’s annoying, but it’s completely normal. You can use panty liners (tampons are a no-no) to feel a little more comfortable, but if it changes color or becomes foul-smelling, it’s important you trust your mama bear instincts and contact your healthcare provider.

Extreme Fatigue: With so much growth and development in this trimester, your gears are running high. The wealth of progesterone in your body is thought to have a sedative effect and while blood volume is increased up to 50% to provide baby with blood, extra iron is needed to make baby’s blood cells. This iron is often taken from your supply, leaving you low – and therefore low on energy. Your doctor should give you a blood test during your first prenatal visit to check your iron levels – if you are too low, you can get a supplement.

Constipation: While that added iron supplement, might provide more energy, it can also be a cause of constipation in the first trimester.  That and the fact that your intestine muscles are working slower because of those darn progesterone levels. You might have to look in to upping your fiber intake – and don’t forget to drink extra fluids to keep things moving down there.

Morning sickness: Nausea and vomiting is thought to affect up to 85% of moms-to-be. TBH, we aren’t even sure why we still call it morning sickness, as we all know it can strike at any time. Hormones are again to blame – too much human chorionic gonadotropin in your system. Moms-to-be find themselves in the early weeks repelled by certain tastes and smells while hyper-craving others. Whatever it is, it can be rough! Some people swear by eating smaller meals during the day. Some people swear by ginger.  Some swear by B6 while some go completely unaffected. There are no rules here, just trial and error. Take it easy and keep reminding yourself that this will soon pass. For those that can stomach regular meals, remember in trimester one that you only need an extra 150 calories a day – the whole “eating for two thing” is more wishful thinking here!

Acne: Thanks once again to a hormones overload, your skin might also start to produce more oil which can lead to acne break outs. There’s no real way to avoid this unfortunately – just don’t fuel it by piling on oily moisturizers and make up and ALWAYS consult with your health care provider before using any medicated gels or lotions.

Acne? Vomit? Discharge? Constipation? First time mamas might be thinking ‘pregnant glow my big toe!!’ The first trimester is probably not what you imagined. And while it’s beyond exciting, the symptoms are more than likely also making it REALLY difficult to keep the baby news under wraps in those first 12 weeks. We know it’s hard mamas, but try to remember in one of your dark vomit fuelled hours that, YES your body is being put through the hormonal ringer right now, but all these symptoms are a great sign that baby is growing and doing well. Your body is doing an incredible job, just like you will when your little lime fully cooks and finally arrives.