4 weeks pregnant with twins, before I knew I was carrying twins!!

4 Weeks Pregnant with Twins: Before I Knew I Was Carrying Twins

Curious what it’s like to be 4 weeks pregnant with twins? At 4 weeks pregnant, I had no idea I was carrying two babies but I did notice many things were different than with my first pregnancy.

My husband and I always envisioned having two children. When our first child was about 18 months old we decided to start trying for a second baby and soon I was 4 weeks pregnant with twins…though I didn’t know yet I was carrying twins!!


Trying to Get Pregnant

Before we got pregnant with our first child, I had read so many different books and blog posts regarding “how to get pregnant” and followed a specific method that I think really helped us. Especially since we got pregnant the first month we were trying!!

We used the same method when trying for our second baby.

For some reason I feel weird saying exactly what we did since some family members read my blog sometimes but…I’ll make it quick. Note: I am NOT saying this will surely result in pregnancy, this is simply what we did and it happened to work.

  • I started prenatal vitamin with folate 3 months before trying to get pregnant.
  • We also had my husband start taking multivitamins during this time.
  • We had him start to wear boxers to keep things loose instead of what he usually wore, which aren’t that restricting but apparently boxers are ideal.
  • I tracked my cycle and on days 6-21 throughout my cycle (basically right after I got done with my period to two weeks after that) we had intercourse every other day.
  • No other expelling of semen was allowed during that time because the semen need to repopulate during those 2 days.
  • We’d end things with me on my back where I’d stay for 15 minutes after.
  • I did keep my legs up and sometimes elevate my bottom with a pillow, though I’ve read that may not matter but figured it didn’t hurt at least.

Other things not directly related but may have helped our chances:

  • Neither one of us drink alcohol, smoke, or use any recreational drugs.
  • I have cut out many inflammatory foods from my diet such as gluten, dairy, and soy.
  • Adequate sleep (as much as possible with a 1 year old) and trying not to stress about getting pregnant.

Due to me having hypothyroidism caused by the autoimmune disease, Hashimoto’s Thyroiditis, I made sure that my thyroid levels were in the optimal range before we started trying as well. More on that below but to keep it simple, for me, having my TSH around 1.0 has been ideal for becoming pregnant and where I feel the best overall.


Month 1 of Trying

The first month of trying for baby #2, we didn’t get pregnant.

I wasn’t surprised since I know we were so very lucky to get pregnant the first month trying with our first. I was a little apprehensive though, wondering if I’d be able to get pregnant again but figured it just didn’t happen that first month.


Month 2 of Trying

The second month of trying proved to be successful!!

Unlike with my first child, I could EASILY tell right away when I tested after missing my period that I was surely pregnant. The line was very dark on the test, which surprised me, but I didn’t think much of it.

4 weeks pregnant with twins the pregnancy test line was much darker than with my first pregnancy
Top is 28 days into my cycle and bottom is 30 days into my cycle and it got darker as the days went on.

4 Weeks Pregnant with Twins – Development

At 4 weeks pregnant, fertilization already occurred at 3 weeks when a sperm and egg combine to create a zygote. By 4 weeks, the zygote turns into a blastocyst and implants into the uterine lining.

If you’re having fraternal twins, they were created by two eggs and two sperm. If you’re having identical twins, they came from one egg and one sperm, a zygote that separated by now. Depending on when they separated, you’ll either have DiDi, MoDi, or MoMo twins.


Symptoms of Being 4 Weeks Pregnant with Twins

As I mentioned in the headline of this blog post, I had no idea I was carrying twins at 4 weeks. I just knew that I was pregnant.

I already was feeling that my hair was getting thicker than usual, especially since I generally have very fine hair.

I also noticed that I was already getting a baby bump which seemed early, but then again I know it’s common to get bigger faster with a second pregnancy.

My energy level was already lower than it had been before I got pregnant and I was having tender nipples already, which was a bummer especially since I was still breastfeeding my oldest child a couple of times a day.

I also became nauseous and sensitive to different foods and smells earlier than I remember with my first child.

My weight at that time was near my ideal weight at 116 lbs (I’m only 5’1″) but with my growing belly I knew that’d be rising soon.

I was really excited to be pregnant again as I loved my first pregnancy, I felt great in the 2nd trimester and loved feeling baby moving inside of me.

4 weeks pregnant with twins

Already Nervous

I was a little nervous as pregnancy for me is already riskier than most since I have hypothyroidism so I have to be carefully monitored to ensure baby and I are getting enough thyroid hormone or baby won’t make it.

I had advocated hard to get the care I needed during my first pregnancy and knew I could again during this one. I had my thyroid levels checked right when I found out I was pregnant with twins and the levels already needed to be adjusted, which happened with my first pregnancy as well.

how to have a successful pregnancy with hypothyroidism or hashimotos disease, text and picture of a woman getting blood drawn, a pregnant woman, and a baby
My blog post about Hypothyroidism, Hashimoto’s, and a Healthy Pregnancy

Different Symptoms This Time

I wrote another blog post all about twin pregnancy symptoms, comparing my first (singleton) pregnancy to my twin pregnancy, both before and after I knew I was having twins that goes into more detail as well.

twin pregnancy symptoms
My Blog Post About My Twin Pregnancy Symptoms

Next Post

8 weeks pregnant with twins
8 Weeks Pregnant with Twins

4 weeks pregnant with twins before I knew I was carrying twins! A picture of me already showing.

Founder, Professional Blogger at The Way it Really Is, LLC | [email protected] | Website

As a mom of identical twins and a son two years older, I have gained invaluable experience in the realm, and chaos, of parenting. With a Master's Degree and Education Specialist Degree in School Psychology, I spent years as a school psychologist, helping children navigate through their educational and emotional challenges. Now as a stay at home mom and professional blogger, I combine my areas of expertise to help you in your parenting journey.

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