Navigating the First Trimester: A Guide for New & Seasoned Mamas

Whether you’re a first-time mama or a seasoned pro adding to your growing family, the first trimester of pregnancy can be filled with a mix of excitement, nerves, exhaustion, and everything in between. From the moment you see those two pink lines, your journey has officially begun, and it deserves to be met with support, truth, and care. Here’s what to expect during these first 13 weeks, plus some helpful tips and a baby growth tracker to guide you through it. Keep in mind this is not medical advice and if you need medical advice please reach out to your provider.

What To Expect In Your First Trimester

Hey mama, here are a few physical symptoms you can potentially experience during your first trimester.

• Fatigue: It’s real, mama. Your body is working overtime to build a placenta.

• Nausea & Vomiting: “Morning sickness” is often an all-day affair. Some moms feel queasy, others may throw up multiple times a day. And some—none at all!

• Breast tenderness & bloating: Your body is adjusting hormonally and it may feel like PMS x 10.

• Heightened sense of smell: It can be funny or frustrating, especially if food smells make you nauseous.

• Mood swings: The emotional rollercoaster is fueled by rapidly changing hormone levels.

• Uncommon but Normal-ish Experiences:

  • Metallic taste in your mouth

  • Extra saliva (yes, it’s a thing!)

  • Light spotting (always call your provider to be safe)

  • Vivid dreams or restless sleep

• And for some moms, you may not experience any of these symptoms! Maybe just a missed period.

  
  
  
  

How Soon Should You See a Provider?

Your first prenatal visit typically happens between 6–10 weeks of pregnancy. During this visit:

• You’ll confirm your pregnancy with an ultrasound and/or blood test.

• Discuss your medical history with you provider.

• Receive prenatal labs and possibly hear baby’s heartbeat, if you are closer to 8-10 weeks.

• You can also talk about nutrition, exercise, prenatal vitamins, and safe activities in your first trimester.

If you have a history of miscarriage, fertility concerns, or other conditions, contact your provider sooner and allow them to guide you on when it is best to come in.

You Are Growing A Little Human!

Here is what is happening week to week in your first trimester.

Week	Approximate Size	Development Milestone
1	Microscopic	Fertilization and implantation begin
2	Poppy seed	Amniotic sac and placenta begin forming
3	Sesame seed	Formation of neural tube begins (brain, spinal cord)
4	Lentil	Heart and circulatory system start forming
5	Apple seed	Basic facial features begin to develop
6	Sweet pea	Brain, lungs, and limbs begin to grow
7	Blueberry	Arm and leg buds form; brain developing rapidly
8	Raspberry	Fingers and toes start forming
9	Green olive	Organs continue to develop; heartbeat detectable via ultrasound
10	Prune	Facial features become more distinct
11	Lime	External genitals begin to form
12	Plum	Reflexes start; nails and vocal cords develop
13	Peach	Bones hardening; intestines and vocal cords forming

If you need an app to keep up with your baby's growth, there are plenty out there.

Flo is a period tracker that can also turn into a pregnancy tracker. Glo is a period tracker, ovulation tracker, and pregnancy tracker. Natural Cycles tracks fertility, pregnancy, and postpartum.

Here Are Some Tips to Cope with Your First Trimester Symptoms

• For Nausea: Ginger tea, small frequent meals, B6 supplements, and salty snacks like crackers can help. If you have persistent vomiting, please see your provider.

• For Fatigue: Rest when you can. Accept help. Drink plenty of water, stay hydrated.

• For Constipation: Stay hydrated, eat fiber-rich foods, and move your body gently.

• For Emotions: Talk it out. Journaling or connecting with another mom friend can make all the difference. Therapy can also be very beneficial. We have a list of referrals if you need a therapist.

• Prenatal Vitamins: Choose one with folic acid, iron, and DHA. If it’s making you sick, ask your provider about alternatives.

Connecting with Other Mamas

Finding community as a mom can make all the difference. Start by looking for local mom groups, parent meetups, or faith-based gatherings. Online spaces like forums, social media groups, and nonprofit-led programs can also offer great support. Most importantly, know that you’re not alone! MAMA has created a safe space and welcoming community just for moms like you, where you can feel seen, heard, and supported every step of the way. We have first-time moms, seasoned moms, moms who have experienced loss and trauma, and moms who have experienced joyous births. We are all in this together, and as the old folks say, IT TAKES A VILLAGE! Visit our community here.

Conclusion

Whether this is your first baby or your fourth, every pregnancy is unique. You might be chasing toddlers while battling morning sickness, or sitting quietly wondering what comes next. However you’re experiencing the first trimester, joyful, fearful, exhausted, or hopeful, you've got this mama. Your body is doing incredible work, and you deserve grace, rest, and support every step of the way.

At Moms Advocating for Moms, we’re here to walk beside you with resources, care, and community. If you need a provider, postpartum support, or just someone to talk to, we’re only a message away. 🩵🩷💛